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3 years ago

-9(c+7)= 13c+7 what value of C makes the equation true? Enter the answer in the box

Mathematics

1 answer:

Natasha2012 [34]3 years ago

7 0

x= -35/11
1) distribute, -9x -63x = 13x+7
2) put like terms on the same side of parentheses, -9x -13x= 7+63
3) combine like terms, -22x = 70
4) solve for x, x= -70/22
5) simplify, x= -35/11

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Friends needs this anwsered help

olya-2409 [2.1K]

Answer:

3, 8, 14, 30, 58

Step-by-step explanation:

As with all formulas, put the numbers in place of the corresponding variables, and do the arithmetic.

$a_1=3\qquad\text{given}\\\\a_2=8\qquad\text{given}\\\\a_3=2a_1+a_2=2(3)+8=14\\\\a_4=2a_2+a_3=2(8)+14=30\\\\a_5=2a_3+a_4=2(14)+30=58$

The first 5 terms of the sequence are 3, 8, 14, 30, 58.

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2 years ago

A red ribbon 11 meters long is 5 times as long as a blue ribbon. How long is the blue ribbon?

aev [14]

Red ribbon

=Blue ribbon ×5

=11 m

So, changes the times symbol into divide

11m ÷ 5

=2.2m

Check!

Red ribbon=Blue ribbon × 5

11m=Blue ribbon × 5

11m÷5=Blue ribbon

2.2m=Blue ribbon

Blue ribbon=2.2m

Answers

2.2m

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3 years ago

Mrs. Martinez had $150.55 in her checking account. She wrote checks for the following amounts: $45.76, $35.00, and $79.82. What

musickatia [10]

Answer:

160.58

Step-by-step explanation:

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4 years ago

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A hardware store sells light bulbs in different quantities. the graph shows the cost of various quantities. according to the gra

geniusboy [140]

step 1

find the equation of the line

where

x-------> numbers of light bulbs

y-------> the total cost in $

let

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slope m=18/10-----> m=1.8

step 2

with m=1.8 and the point A (0,0)

y-y1=m*(x-x1)------> y=1.8x

step 3

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therefore

the answer is

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4 years ago

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Answer:

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Step-by-step explanation:

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3 years ago

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