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oksano4ka [1.4K]
3 years ago
15

the problem is in the snippet below please only correct answers hmu if you are good at these and i will just have you answer mor

e questions so i can just pay you like 100??

Mathematics
1 answer:
Andrej [43]3 years ago
6 0

Answer:

a = 6   b=  7

Step-by-step explanation:

4 (b-1) = 3b + 3       substitue for a

4b - 4 = 3b + 3       subtract 4b from both sides

-4 = 3b + 3 - 4b       =        -4 = -b + 3        combine 3b and (-4b)

-7 = -b      divide by -1 for both sides

7 = b


4a = 3 × 7 + 3       substitute for b

4a = 24             combine like terms

a = 6       divide by 4 on both sides


a = 7 -1

a = 6


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What valur of x makes the equation below true? 9^5 * 9^7=9^x
klasskru [66]

Answer:

x=12

Step-by-step explanation:

(9^5)(9^7)=9^x

282429536481=9^x

<em>Step 1: Flip the equation.</em>

9^x=282429536481

<em>Step 2: Solve Exponent.</em>

9^x=282429536481

log(9^x)=log(282429536481)(Take log of both sides)

x*(log(9))=log(282429536481)

x=log(282429536481)/log(9)

x=12

8 0
2 years ago
The perimeter of a sand volleyball court is 50 meters. It is 9 meters wide. How long is it?
andreyandreev [35.5K]
9(2) + 2(y) = 50. solve for y. 32=2y, y=16. It is 16 meters long.
7 0
3 years ago
Read 2 more answers
Daniel wants to buy Five-sixths of a pound of pecans. Pecans cost $7.98 per pound. How much will Daniel spend on pecans?
tigry1 [53]

Answer:

A. $6.65

Step-by-step explanation:

To find how much 1/6 is you divide $7.98 by 6 and so the answer is $1.33. Now multiply $1.33 by 5 to get 5/6 or get the answer $6.65.

6 0
3 years ago
Which equation DOES NOT represent the problem?
LUCKY_DIMON [66]

the last option

42t=28t+0.25


hope this helps

<3

6 0
3 years ago
What is the interest rate $2,200 at 7.5% for 3 1/4 years
Phoenix [80]

Answer:

$536.25

Step-by-step explanation:

First, you need to find what 7.5% of $2,200 is,

(2200/100)7.5=165

then to find how much interest has accumulated over 3 1/4 year you need to multiply the one-year interest rate by the 3.25

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5 0
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