Answer:
88
Step-by-step explanation:
Simplify the expression:
17 – (-5x + 2)
Answer:
5x + 15
Step-by-step explanation:
Let's simplify step-by-step.
17−(−5x+2)
Distribute the Negative Sign:
=17+−1(−5x+2)
=17+−1(−5x)+(−1)(2)
=17+5x+−2
Combine Like Terms:
=17+5x+−2
=(5x)+(17+−2)
=5x+15
Answer:
=5x+15
Answer:
-3
Step-by-step explanation
You would first used distribuve property in the parenthisis.
Because there is a minus sign outside of the parenthisis, it would become (5x-2)
Combine like terms
15+5x=0
Subtract 15 from both sides
5x=-15
Divide 5 to get x
5x(/5)= -15(/5)
x=-3
Solve for p in 2.5+3(5 – 2.1p) = -13.37
Answer: p = 4.9
Step-by-step explanation:
2,5 + 3(5-2.1p) = -13,37
2,5 + 3(5-2.1p) - 2,5 = -13,37 - 2,5
3(5-2.1p) = -15,87
3(5-2.1p) / 3= -15,87 /3
5-2.1p = -5.9
5+5.29 = 2.1p
(5+5.29 ) /2.1 = 2.1p /2.1
4.9 = p
In exercises 27-30, three vertices of DEFG are given. Find the coordinates of the remaining vertices: D(-2,-4), F(0,7), G(1,0)
Answer:
[tex]E =[/tex] [tex](-3,3)[/tex]
Step-by-step explanation:
Given
Parallelogram: DEFG
[tex]D(x_1,y_1) = (-2,-4)[/tex]
[tex]F(x_3,y_3) = (0,7)[/tex]
[tex]G(x_3,y_4) = (1,0)[/tex]
Required
Find the coordinates of [tex]E(x_2,y_2)[/tex]
To do this, we make use of mid-point formula which is:
[tex]M = (\frac{x_1+x_3}{2},\frac{y_1+y_3}{2})= (\frac{x_2+x_4}{2},\frac{y_2+y_4}{2})[/tex]
This gives:
[tex](\frac{-2+0}{2},\frac{-4+7}{2})= (\frac{x_2+1}{2},\frac{y_2+0}{2})[/tex]
[tex](\frac{-2}{2},\frac{3}{2})= (\frac{x_2+1}{2},\frac{y_2+0}{2})[/tex]
Multiply through by 2
[tex]2 * (\frac{-2}{2},\frac{3}{2})= (\frac{x_2+1}{2},\frac{y_2+0}{2})*2[/tex]
[tex](-2,3) = (x_2+1,y_2+0)[/tex]
[tex](-2,3) = (x_2+1,y_2)[/tex]
By comparison:
[tex]-2 = x_2 + 1[/tex] and [tex]3= y_2[/tex]
So, we have:
[tex]-2-1=x_2[/tex] and [tex]3= y_2[/tex]
[tex]-3 = x_2[/tex] and [tex]3 = y_2[/tex]
This gives:
[tex]x_2 = -3[/tex] and [tex]y_2 =3[/tex]
Hence, the 4th coordinate is: [tex](-3,3)[/tex]
Class A has 20 pupils and class B has 22 pupils.
Both classes sit the same maths test.
The mean score for class A is 40.
The mean score for both classes is 47.
What is the mean score (rounded to 2 DP) in the maths test for class B?
40×20=800 i just gest so if you wana delite my answer go then
please help me!! asap!! thank youuuu!
Answer:
D
Step-by-step explanation:
4/4 = 1
PLS HELPP I NEED TO KNOW
Find the measure of the indicated angle to the nearest degree
A) 18°
C) 48°
B) 42°
D) 26°
Answer:
The answer is option C
Step-by-step explanation:
To find the indicated angle we use sine
sin ∅ = opposite / hypotenuse
From the question
The opposite is 37
The hypotenuse is 41
So we have
sin ? = 37/41
? = sin-¹ 37/41
? = 64.4805
? = 64° to the nearest degree
If CBA is similar to EDA , find the value of x.
Answer:
1.2
Step-by-step explanation:
The value of 'x' is 1.2 if CBA is similar triangle EDA.
What is similar triangle?Triangles are said to be similar triangle" if they are proportional equality corresponding sides and equal pair of corresponding angles".
According to the question,
∠C =∠E, ∠B=∠D and ∠A=∠A this implies given triangle is inscribed similar right angle triangle.
ΔCBA ≅ ΔEDA [Similar triangle]
Properties of similar triangle: [tex]\frac{CB}{ED} = \frac{BA}{DA}[/tex]
[tex]\frac{6}{7}=\frac{7}{7+x}[/tex]
[tex]6(7+x)=49[/tex]
[tex]42+6x=49[/tex]
[tex]6x=49-42[/tex]
[tex]x= \frac{7}{6}[/tex] [tex]= 1.16666667[/tex] ≈ 1.2
Hence, the value of 'x' is 1.2 if CBA is similar triangle to EDA.
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BRAINLIST!!
Which of these situations have solutions that can be represented by this number line diagram?
Riley needs more than 65 students to sign up for a summer camp. So far, she has 30 students signed up. How many more students need to sign up for the camp?
Bailey is selling gift baskets at a fair. She has less than 80 gift baskets at home already made, and so far she has sold 45 at the fair. How many more gift baskets can she sell before she has to make more?
The number of people at Michelle's party increased by 35. How many people are at Michelle's party?
Mr. Winters reads more than 35 pages in his book every day. How many pages does Mr. Winters read on a given day?
Ms. Carol can have up to 35 students in her class. How many students could be in Ms. Carol's class?
Answer:
Mr. Winters reads more than 35 pages. More than 35 would imply 35+
Answer:
Riley needs more than 65 students to sign up for a summer camp. So far, she has 30 students signed up. How many more students need to sign up for the camp?
Step-by-step explanation:
Just got it right on my test!!
help fast please!!!!
Answer:
OK this is easy the answer is r=2.4
Step-by-step explanation:
so what you would do is simply add 3.1 and 1.7to get 4.8
then you would divide 4.8 by 2 and get r=2.4
Maggie has $15.00 and will begin earning an allowance of $10.00 per week. Jess has $5.00 and will begin earning an allowance of $15.00
per week.
When will maggie and jess have the same amount of money and how much money will they have?
PLEASE HELP
PLEASE HELP IM ACTUALLY BEGGING U!!
Answer:
2 to 8
For every two dogs there are eight small dogs
or
for every large dog there is four small dogs (this is just simplified)
HELP ME PLZZ
what is the slope of this line?
Answer:
4/5
Step-by-step explanation:
A rocket is traveling 4,000 miles per hour. How much time in hours will it take the rocket to travel a distance of 84,000 miles?
Answer:
21 hours
Step-by-step explanation:
84,000 = 4,000x, x = hours
84,000 ÷ 4,000 = x
x = 21
good luck, i hope this helps :)
Answer:
84000/4000=21 hours
Step-by-step explanation:
Can y’all help with this math question? Plz
Given AD=8, AC=12, BC=15. Find the value of x that would make AADE-AACB
E
B
Answer:
DE = 10
Please put the Brainlest
Pleasee helpp answer correctly !!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!
Answer:
x = 67º
Step-by-step explanation:
the sum of two angles on the same side = 180º so
x + 113º = 180º subtract 113º from both sides
x = 67º
Help plzz and It's continue of math
Homework: Compound Probability (Without Replacement)
2.) There are three nickels, four dimes, and four quarters in your pocket. You randomly pick three coins and place them on a counter. The first coin is a nickel, the second is a dime, and the third is a quarter.
3/110, 8/165, 1/64, 10/273
3.) A box of chocolates contains four milk chocolates and six dark chocolates. You randomly pick a chocolate and eat it. Then you randomly pick another piece. The first piece is milk chocolate and the second piece is dark chocolate.
4/15, 5/18, 5/22, 3/110
Answer:
For number 2: 8/165
Step-by-step explanation:
The total number of coins = 11 ( 3 + 4 + 4 = 11).
The probability of picking a nickel first = 3/11 ( 4 nickels out of 11 total).
The probability of picking a dime second = 4/10 = 2/5 ( 3 dimes out of 10 coins left).
The probability of picking the third coin as a quarter = 4/9 ( 3 quarters out of 9 coins left).
I don't know the other problem, sorry.
Answer:
2) 8/165
3) 4/15
Step-by-step explanation:
2) P(N,D,Q) = 3/11 x 4/10 x 4/9
3) P(M,D) = 4/10 x 6/9
Please answer this.....its very simple question....
A weighing scale with two objects x and y is shown below:
100 g
500 g
Which of the following relations about the weights of x and y is true?
A. x is 400 g heavier than y.
C. y is 5 times as heavy as x
B. x is 400 g lighter than y.
D. x and y weigh the same.
The answer is B. x is 400 g lighter than y.
Answer:
B. x is 400 g lighter than y.
Solve the inequality and graph the solution.
4x - 5 ≥ 7
Answer:
x=3
Step-by-step explanation:
it would go over the point 3,7 on the graph with a positive slope
The given inequality is solved to obtain as x ≥ 3.
What is linear inequality?Linear inequality refers to the relation between a linear algebraic expression to some known value that contains inequality sign.
Unlike a linear equation it can have a range of values inside an interval.
The given inequality can be solved as follows,
4x - 5 ≥ 7
Subtract 7 from both sides to obtain,
4x - 5 - 7 ≥ 0
=> 4x - 12 ≥ 0
=> 4x ≥ 12
=> x ≥ 3
The graph for the given inequality is shown as below,
Hence, the solution for the given inequality is x ≥ 3.
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Find the measure of
Answer:
19 degrees.
Step-by-step explanation:
First solve the angles in the top triangle:
FHG = 180 - 135 = 45 (angles on a straight line = 180)
FGH = 180 - 105 = 75 (angles on a straight line = 180)
Using these we get HFG = 180 - 45 - 75 = 60 (angles in a triangle = 180)
Then because HFG is directly opposite DFC on the crossed lines, we know they are equal: DFC = 60
FDC = 180 - 119 = 61 (anges on a straight line = 180)
Now if we label ABC (the target angle) as x then we known ACB = 180 - 40 - x.
With this we know FCD = 180 - ACB = 180 - (180 - 40 - x) = 40 + x (angles on a straight line).
Finally using the FDC triangle we have 40 + x + 60 + 61 = 180 so x = 180 - 40 - 60 - 61 = 19 degrees.
4 (4b + 3) + 2b = 3 (b - 11)
Step-by-step explanation:
4 (4b + 3) + 2b = 3 (b - 11)
16b+12+2b=3b-11
16b+2b-3b=-11-12
15b=-23
b=-23/15
Answer:
Step-by-step explanation:
B= -3
Do 4(4b + 3) first than the answer I get from that equation you
16b + 12 2b= 3(b-11)
Combine like terms
3
Distribute
4
Subtract
1
2
12
12
from both sides of the equation
5
Simplify
6
Subtract
3
3
b
3b
from both sides of the equation
7
Simplify
8
Divide both sides of the equation by the same term
A hybrid SUV can travel 400 miles on a 15-gallon tank of gas. How many miles can it travel on 6 gallons of gas?
Answer:
160miles
Step-by-step explanation:
400miles uses15g what about 6g.
Using cross multiplication. Multiply 6x400/15 = 160miles
Answer:
160 miles
Step-by-step explanation:
If it travels 400 miles on 15 gallons, then it will travel x miles on 6 gallons
400 miles -> 15 gallons
x miles -> 6 gallons
15 * x = 6 * 400
15x = 2400
x = 2400 / 15
x = 160 miles
Find the area of the triangle.
Answer:
107.1 yd²
Step-by-step explanation:
Given
base (b) = 34 yd
height (h) = 6.3 yd
Area of the triangle
= 1 /2 * b * h
= 1/2 * 34 * 6.3
= 107.1 yd²
Hope it will help :)❤
4. If y varies directly as x and y = 72 when x = 6 find y when x = 4.
i will mark brainliest
Answer:
1. -3, -2.5, -3/4, -3/8, 1/4, 16/5, 3.1, 6
Step-by-step explanation:
2. -2.7<4.5
I know 1. is right but 2. I'm not sure how advance the math is but that is what I got for the answer
Help please pleaseeee
Answer:
sowkdiwdjs
help me
Step-by-step explanation:
please lol
Cost price = £40
Selling price = £48
Calculate the percentage profit
find the cofactors of each entry in the first row of matrix.
Answer:
Ac_11 = -13
Ac_12 = 44
Ac_13 = 27
Step-by-step explanation:
Plato
The cofactors of each entry in the first row of the matrix are
Ac_11 = -13
Ac_12 = 44
Ac_13 = 27
We have to determine the cofactors of each entry in the first row of the matrix.
What is the matrix?
A set of numbers is arranged in rows and columns so as to form a rectangular array. The numbers are called the elements, or entries, of the matrix.
Therefore the cofactors of each entry in the first row of the matrix is
Ac_11 = -13
Ac_12 = 44
Ac_13 = 27
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In a high school stadium there are 1575 seats. There are two and a half times as many seats in the home section as there are in the visitor section. Which system of equations could be used to determine the number of seats in the home section, h, and the number of seats in the visitor section, v, in the stadium?
Answer:
h = 1,125
v = 450
Step-by-step explanation:
Total number of seats = 1575
h = number of seats in the home section
v = number of seats in the visitor section
There are two and a half times as many seats in the home section as there are in the visitor section.
h = 2 1/2 * v
h = 2 1/2v
Total = h + v
1575 = 2 1/2v + v
1575 = 3 1/2v
1575 = 7/2v
v = 1575 ÷ 7/2
= 1575 × 2/7
= (1575*2) / 7
= 3150 / 7
= 450
v = 450
h = 2 1/2v
= 5/2*450
= 2250/2
= 1,125
h = 1,125