Answer:
a = 17
Step-by-step explanation:
a + (-5) = 12
Open the bracket;
a - 5 = 12
Add 5 to both sides
a - 5 + 5 = 12 + 5
Therefore,
a = 17
Answer:
a=17
Step-by-step explanation:
any number plus a negative number is basically subtracting the absolute value of the negative number. so 12 + 5 = 17
Suppose someone gives you 6 to 1 odds that you cannot roll two even numbers with the roll of two fair dice. This means you win 6 dollars if you succeed and lose 1 dollar if you fail. What is the expected value of this game to you. What can you expect if you play 200 times
Answer:
0.75 ;
150
Step-by-step explanation:
Probability of rolling two even numbers :
{1, 2, 3, 4, 5, 6}
P(even) = 3 / 6 = 1/2
From a roll of 2 dice :
P(even) * P(even) = 1/2 * 1/2 = 1/4 = 0.25
P(not even) = 1 - 1/4 = 3/4
X : ____ 6 _______ - 1
P(x) ____ 0.25 ____ 0.75
Expected value :
Σx*p(x) = (6*0.25) + (-1 * 0.75)
= 1.50 - 0.75
= 0.75
If 200 games are played :, n = 200
Expected value * n
0.75 * 200
= 150
Find x, y and z
help i don’t know what to do, it’s the last question
Answer:
y=3
(bc it is the same length as its perpendicular counterpart.
x= 9 (same with Z)
(From pythagorean theorem)
6^2+3^2= (root of) 45
and square root 45
and it is the same as its counterpart (which is z)
Step-by-step explanation:
as I explained on the answer(it doesnt let this part be unwritten)
4. If A = (-4, -5) and B = (-1, -10), what is the length of segment AB? Round your answer to the nearest hundredth.
Answer:
5.83095 or √34
Step-by-step explanation:
Find the difference between coordinates:
(x2-x1) = (-1 - -4) = 3
(y2-y1) = (-10 - -5) = -5
Square the results and sum them up:
(3)2 + (-5)2 = 9 + 25 = 34
Now Find the square root and that's your result:
Exact solution: √34 = √34
Approximate solution: 5.831
the reciprocal of 7/11 is
Answer:
11/7, you just turn or flip the fraction.
Step-by-step explanation:
Is (1, 10) a solution to this system of inequalities?
y < x + 10
y < 8x + 7
if zaeirr has 10 dogs and lamarr has 2 dogs how many more dogs does zaeirr have than lamarr?
Answer: 8
Step-by-step explanation:
For this problem, we would have to subtract the larger number of dogs by the smaller number of dogs. Zaierr has 10 dogs, and Lamarr has 2 dogs. We would have to subtract the number 10 by the number 2 to get our answer.
10 subtracted by 2 is equal to the number 8.
The answer to our question is 8.
Raymond's bake shop sold 26 1/2 cupcakes on Saturday on Friday the bake shop sold 19 3/4 dozen cupcakes what is the approximate percent increase in cupcake sales from Friday to Saturday
Answer: 34.18%
Step-by-step explanation:
Given: On Saturday, Number of cupcakes sold = [tex]26\dfrac12[/tex] dozens
= [tex]\dfrac{53}{2}[/tex] dozens
[tex]=\dfrac{53}{2}\times12[/tex] [ 1 dozen = 12 items]
[tex]=53\times6\\\\=318[/tex]
On Friday, Number of cupcakes sold = [tex]19\dfrac34[/tex] dozens
= [tex]\dfrac{79}{4}[/tex] dozens
[tex]=\dfrac{79}{4}\times12[/tex] [ 1 dozen = 12 items]
[tex]=79\times3\\\\=237[/tex]
Increase in cupcakes = 318-237=81
Percent increase in cupcakes sales from Friday to Saturday = [tex]\dfrac{81}{237}\times100[/tex]
= 34.18% (approx)
The approximate percent increase in cupcake sales from Friday to Saturday = 34.18%
can someone do this for me please
Step-by-step explanation:
3:5
B,D
7:8
E,F
5:9
b,H
4:1
c,g
brainliest if correct ill do giveaway if you give correct answer
Hailey had 29 DVDs. She went to the store and bought more. Now she has 33 DVDs. How many DVDs did she buy?
A.3 DVDs
B.4 DVDs
C.33 DVDs
D. 62DVDs
Answer:
option B 4 DVDs
Step-by-step explanation:
she bought 4 DVDs.
plz mark my answer as brainlist plzzzz. hope this will be helpful to you.
What is the slope of y=-4
Answer:
0
Step-by-step explanation:
The slope would be 0 because the y value is not increasing.
Answer:
the slope is 0
Step-by-step explanation:
Daniel expanded the expression as shown.
-2(-8x-4y+3/4)=10x-8y-1 1/4
Answer:
-2(-8x-4y+3/4)= 16x + 8y - [tex]\frac{11}{2}[/tex]
Step-by-step explanation:
Step1:
Multiply the parenteses by -2
= -2 × (-8x) -2 × (-4y) -2 × [tex]\frac{11}{4}[/tex]
Step2:
Calculate and reduce
= 16x + 8y - [tex]\frac{11}{2}[/tex]
Answer:
The right answer is
Step-by-step explanation:
Click To Open!
I'm just try to make yall happy with no answer lol have a good day
Do the ratios 7/3 and 6/2 form a proportion.
Yes or no
Answer:
no it not really the same
Step-by-step explanation:
Answer:
No they are not proportional
Step-by-step explanation:
You first cross multiply
since the products do not match they are not proportional
If you have any more quesitons feel free to ask - Mark
What are the factor pairs of 81.
Answer:
9 × -9 = 81, (-9, -9) is a pair factor of 81.
Step-by-step explanation:
13
Find the scale factor
If h(x) = 3x + 4, what is h(2x - 3)?
Answer:
6x-5
Step-by-step explanation:
3(2x-3)+4
6x-9+4
6x-5
Answer is 6x-5
Pls help me no one explanation I will mark tysmmm
Answer:
1/4
Step-by-step explanation:
It's going 1 up and 4 across
Does anyone know the greater common factor of 40
Answer:
20
Step-by-step explanation:
Answer: The greater common factor is 20
Step-by-step explanation:
Hope this helps!
Hope you are having a good day !!
I don't know if I can help much since i'm only in 7th grades as of Feb 2021, but if you are in my grade or lower I could probably help ! <3
Answer:
ok
Step-by-step explanation:
Solve the system 2x + 3y = 6 2x - 5y = 22
Answer:
In point form (6,-2) and Equation form: x = 6, y= -2
Step-by-step explanation:
Brian's monthly gross income is $2,950. He pays 22% of his monthly gross
earnings in federal and state taxes and spends 10% of that monthly income to
pay off his credit card debt. Brian is also paying off a loan his parents gave him
for a new car by sending them 8% of his income per month. Brian found an
apartment near his work that rents for $1,300 per month. Will he be able to make
the payments without changing the amounts he pays towards his loan and credit
card debt?
Answer:
Yes
Step-by-step explanation:
I = 2950
T = 22% x 2950 = 649
CC = 10% x 2950 = 295
NC = 8% x 2950 = 256
R = 1300
I - (T + CC + NC + R) > 0
2950 - ( 649+ 295 + 256 + 1300) > 0
2950 - 2500 >= 0
450 > 0
URGENT BRAINLIEST HELPPP
Answer:
242 ft²
Step-by-step explanation:
8X18=144
7X14=98
144+98=242
у= 3х - 1
у = 3х + 2
Answer:
first on the slope is 3 and y intercept is 0,-1
second on the slope is 3 and y intercept 0,2
Step-by-step explanation:
18x - 7y=1
X - 7y=-33
Answer:
18x=7y+1
18x-1=7y
x+33=7y
18x-1=x+33
17x=34
x=2
y=5
Step-by-step explanation:
eighteen divided by the sum of two and seven
Numerical expression.
Answer:
D
Step-by-step explanation:
8 times the difference of u and 10
Answer: 8(u - 10)
Step-by-step explanation:
Answer:
16
Step-by-step explanation:
10-8=2
8*2=16
help me with this multiple choice !
Answer:
60 30 special triangle
answer is b
Answer:
B
Step-by-step explanation:
Write the equation of the line that passes through the following points.
(3, 1) (1,7)
Answer:
y=-3x+10
Step-by-step explanation:
Slope formula y2-y1/x2-x1
7-1/1-3
simplify
6/-2
simplify
-3
now plug -3 into y=mx+b
y=-3(x)+b
choose any point and plug it into the equation, I am using (3,1)
1=-3(3)+b
simplify
1=-9+b
add 9 to both sides
b=10
plug into slope-intercept form
y=-3x+10
can someone help I will mark you! ❤️❤️❤️
Answer:
slope is 3/2
Step-by-step explanation:
To solve for slope: y2-y1/x2-x1.
2 points can be (3,1) and (5,4)
4-1/5-3 ---> 3/2.
Also the slope is going up by 3 units and across by 2 units
Find the value of X express each answer as a decimal rounded to the nearest tenth.
Answer:
x = 15.6
Step-by-step explanation:
use the pythagorean theorem:
a² + b² = c²
a = 9
b = x
c = 18
(9)² + x² = (18)²
81 + x² = 324 subtract 81 from both sides
x² = 243 take the square root of both sides
x = √243
x = 15.6
There are 12 pieces of fruit in a bowl and 3 of them are apples. What percentage of the pieces of fruit in the bowl are apples?
Answer:
25%
Step-by-step explanation:
3/12 = 1/4 = 0.25 = 25%