Step-by-step explanation:
The sum is 1225
Solution :
The numbers from 150 to 200 divisible by 7 are 154,161 ,168,…., 196
Here, a=154,d=7a=154,d=7 and tn=196tn=196
tn=a+(n−1)dtn=a+(n-1)d …(Formula )
∴196=154+(n−1)×7∴196=154+(n-1)×7 …(Substituting the values )
∴196−154=(n−1)×7∴196-154=(n-1)×7
∴427=n−1∴427=n-1 ∴n−1=6∴n-1=6 ∴n=7∴n=7
Now, we find the sum of 7 numbers.
Sn=n2[t1+tn]Sn=n2[t1+tn] ...(Formula )
=72[154+196)=72[154+196)
=72×350=72×350
=7×175=7×175
=1225
A cell phone company recently noticed a 26% sales decrease in the month of July compared to June. Let n represent June's
sales. If y represents July's sales, which equation can be used to determine the sales in July?
0 A y = n - 0,26n
OB y = n - 0.26
0 C. y = n + 0,26n
OD. n = y-0.26
22
Answer:
Option A. is correct.
Step-by-step explanation:
Given: A cell phone company recently noticed a [tex]26\%[/tex] sales decrease in the month of July compared to June such that [tex]n[/tex] represent June's sales.
Also, [tex]y[/tex] represents July's sales.
To find: equation that can be used to determine the sales in July
Solution:
June's sales [tex]=n[/tex]
Decrease in sales [tex]=\frac{26}{100}n=0.26n[/tex]
So,
July's sales [tex]=n-0.26n[/tex]
Also,
July's sales [tex]=y[/tex]
Therefore,
[tex]y=n-0.26n[/tex]
So, option A. is correct.
Mrs.Browns rectangular kitchen is 10 ft wide and.16 ft long, if she creates a scale drawing.With a length of 4 inches, what would be the width
Answer:
2.5 inches
Step-by-step explanation:
1 feet = 12 inches
The length is 16 ft x 12 = 192 inches
The length was scales by an unknown measure which i would represent with x . The equation is as follows
192 inches x a = 4 feet
a = 48
The kitchen was scaled by 48
10 x 12 = 120 inches
120/48 = 2.5 inches
4x – 8 = 32
How do I solve this
Answer:4
x
+
8
=
32
Step-by-step explanation:Isolate for
x
. Start by subtracting
8
from both sides of the equation.
4
x
+
8
−
8
=
32
−
8
4
x
=
24
Divide both sides of the equation by
4
.
4
x
4
=
24
4
x
=
6
Answer:
10
Step-by-step explanation:
4x-8=32
4x=32+8
4x=40
x=40/4
x=10
30 times 6 divided bye 8
Answer:
22.5 hope i helped you out
Step-by-step explanation:
Answer:
22.5
Step-by-step explanation:
I used a calculator:))))hope it helped:))))))
What is the value of z?
Z =
Answer:
Step-by-step explanation:
There is know question please update it.
hshsswwwssswww
Step-by-step explanation:
Diego bought 4 boxes of cookies to thank his coaches at the end of the season. Each box had the same number of cookies. A friend brought 1 cookie to add to each box. Now there were 28 cookies in all. What is the unknown amount in the story?
Answer:
there are 24 cookies in the 4 boxes
there are 6 cookies in each box
Step-by-step explanation:
Let x = number of cookies in each box
If there are 4 boxes, the total number of cookies in the four boxes are 4x
If a friend brought 1 cookie to add to each box, the friend brought a total of 4 cookies
4x + 4 = 28
Solving for x
4x = 28 - 4
4x = 24
x = 6
Each box contains 6 cookies and there are 24 cookies in 4 boxes
Enter the number that belongs in the green box
Answer:
x = 7
Step-by-step explanation:
All sides are equal therefore its 7
Hope this helps!! ♥︎
x = 7
7 because the measurement of all side are congruent
There are 171 South American animals in a zoo. That is 40 more than half the number of African animals in
the zoo. Enter an equation you could use to find n, the number of African animals in the zoo.
Please help me guys
matematikte terim nedir
Answer: Cebirsel ifadede bulunan birden fazla değişken çarpımına veya 1 tane bilinen 2 tane bilinmeyen buna terim denir.
Step-by-step explanation:
5/6x8/9 as an improper fraction
Answer:
[tex] \frac{20}{27} [/tex]
Step-by-step explanation:
this can not be converted into a improper fraction
consider downloading photomath
Suppose you have a bag of colored plastic disks and you choose one without looking. The probability the disk you choose is yellow is P(yellow)=5/25. Write this probability as a decimal. Use a word or phase to describe this probability
Pleas help I give 90 points
Answer:
First, your only giving 45
Step-by-step explanation:
Second,
Part 1:
P(yellow) [tex]\frac{5}{25}[/tex] as a decimal is 0.2
Part 2:
What best describes the probability?
A: Unlikely
What are the solutions for X^2-9x=-9
Answer:
x = 1.146 and x =7.854
Step-by-step explanation:
Use the quadratic formula
x = -b ± √b² -4ac
2a
-(-9) ±√81-36
2
9 ± √45
2
1 Write the slope-intercept form of the equation of the line. -
Step-by-step explanation:
x=0 y=2
x=-2 y=0
y=mx+b
b=2
0= -2m+2
2m=2
m=1
y= x + 2
I WILL GIVE BRAINLIEST IF YOU FIGURE IT OUT
Give a third degree polynomial that has zeros of 17, 7i, and −7i, and has a value of −845 when x=4. Write the polynomial in standard form axn+bxn−1+….
Which shows an explicit formula for a sequence whose first term is 8 and
whose common difference is 7?
Answer:
7n + 1
Step-by-step explanation:
the general formula for figuring out the formula of a sequence is a + (n - 1)d, where a = the first term and d = the common difference
The question tells u that the first term is 8 and the common difference is 7
Knowing this, you can substitute those values into the formula and simplify:
a + (n - 1)d
= 8 + (n - 1)*7
= 8 + (7n -7)
= 8 + 7n - 7
= 7n - 7 + 8
= 7n + 1
and there's your explicit formula! hope this helped!
what are the coefficients in the expression 4x+y+6z+12
Answer:
4, 1, 6
Step-by-step explanation:
The coefficient of x is 4
The coefficient of y is 1
The coefficient of z is 6
The coefficient of a variable is the number that appears before it.
Does anyone know this. Please help.
Answer:119
I'm new so don't just take my answer
Step-by-step explanation:
(x⁵+x⁴-x³-5x+4)÷(x+ 2)
Answer:
[tex](x^4 - x^3 + x^2 +2x -1) \times (x + 2) + 6[/tex]
Step-by-step explanation:
(see image)
8. The city commission would like to install new flagpoles that are each
45 feet tall. How tall are the flagpoles in the model?
Answer:5
Step-by-step explanation:
Write an expression that is equivalent to 7 3/4 + 3 5/6 - 1 3/4 that uses addition instead of subtraction
I need this ASAP please I’ll make it 20 points
Solving Square root and other radical equations
Answer: How to answer radical questions and such:
The most basic is to isolate one of the square roots, square both sides, and this will usually yield less square roots than when you started with. Keep repeating until you have no more square roots. This works pretty well in most cases, there are sometimes some tricks, arising from the particular problems themselves ways, which allow you to solve the equations much faster
The solving methods for Square root and radical equations are given below.
What is a radical equation?An equation wherein a variable is withinside the radicand of a thorough expression is referred to as a thorough equation. As usual, whilst fixing those equations, what we do to at least one aspect of an equation we ought to do to the alternative aspect as well. Once we isolate the radical, our approach could be to elevate each facet of the equation to the strength of the index. This will remove the radical.
To asked how to solve Square root and the radical equation
For Square root:
There are many methods for solving a square root such as
Repeated Subtraction Method of Square RootSquare Root by Prime Factorization MethodSquare Root by Estimation MethodSquare Root by Long Division MethodHere we will learn solving Square root using the Long method
Long division method
Separate your square root base into pairs. Find the largest square that divides into the first number or pair. Subtract the square from the first number or pair. Drop down the next pair.Multiply the first digit of the square by twoSet up the next factor equation.For radical equation:
There are many types of radical equations such as
Equation with one radicalEquation with two radicalsEquation with three radicalsAnd so on,
the best way to solve radical equations is:
Isolate one of the radical terms on one side of the equation.Raise both sides of the equation to the power of the index.Are there any more radicals?If yes, repeat Step 1 and Step 2 again.If no, solve the new equation.Check the answer in the original equation.Learn more about radical equations here:
https://brainly.com/question/9370639
#SPJ2
A bag contains 15 blue marbles, 5 red marbles, and 11 green marbles. How many blue marbles must be removed
from the 31 marbles in the bag so that the probability of randomly drawing a blue marble is ?
A bag contains 15 blue marbles, 5 red marbles, and 11 green marbles. How many blue marbles must be removed
from the 31 marbles in the bag so that the probability of randomly drawing a blue marble is 1/3?
Answer:
7 blue marbles
Step-by-step explanation:
15 blue
5 red
11 green
Total = 31
Number of Blue marbles that must be removed to obtain a probability of :
P(blue) = 1/3
Probability = required outcome / Total possible outcomes
Let number of blue marble to be removed = x
Number of Blue becomes : 15 - x
Total becomes : 31 - x
P(blue) = 1/3
1/3 = (15 - x) / (31 - x)
1/3 * (31 - x) = 15 - x
(31 - x) / 3 = 15 - x
31 - x = 45 - 3x
-x + 3x = 45 - 31
2x = 14
x = 14 / 2
x = 7
l
The function P(1) - 5,000(1.098)' models the value, in dollars, of a painting after t years. What is the initial value of the painting?
Answer:
the answer is $5,000
Step-by-step explanation:
the question is asking what the initial value of the painting is and in the equation, they are trying to find out how much the painting will cost after t years. the 1.098 is how much the painting decreases each year and it is being multiplied by &5000 so $5000 is the original value of the painting.
I. find the distance the two given points
Answer:
Step-by-step explanation:
Use the formula,
distance = √[(x1-x2)^2 + (y1-y2)^2]
y=-4x-3
y=-2x+1
help
Answer:
x=−y+
−1/2
Step-by-step explanation:
Let's solve for x.
y−4x−3y=−2x+1
Step 1: Add 2x to both sides.
−4x−2y+2x=−2x+1+2x
−2x−2y=1
Step 2: Add 2y to both sides.
−2x−2y+2y=1+2y
−2x=2y+1
Step 3: Divide both sides by -2.
−2x
−2
=
2y+1
−2
x=−y+
−1/2
find the slope of the line that passes through the points (-2,6) and (9,-5)
Answer:
-1
Step-by-step explanation:
deltay/deltax
(6-(-5))/(-2-9)
11/-11
-1
porfavor: 5(x+9) = 2(x+30)= cuanto es?
Step-by-step explanation:
Primero encontramos el valor de x,
5(x+9) = 2(x+30)
=> 5x + 45 = 2x + 60
=> 5x - 2x = 60 - 45
=> 3x = 15
[tex] = > x = \frac{15}{3} [/tex]
=> x = 5
Como tenemos el valor de x entonces,
LHS = 5(x+9) RHS = 2(x+30)
= 5(5+9) = 2(5+30)
= 5 × 14 = 70. = 2 × 35 = 70
Por tanto, el valor es,
5 (x + 9) = 2 (x + 30) = 70 (Ans)
The cost of downloading a video game app on the App Store is $1.75. Which equation can be used to find the c, the cost in dollar of downloading n video games?
A) c = n + 1.75
B) c = 1.75n
C) n = c + 1.75
D) n = 1.75 c
someone pls factorise step by step x^2 + 5x - 24
Answer:
this is the answer okay
Step-by-step explanation:
thisis the answer