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3 years ago

1. r-8/5=-4/11 2. 9a/a+4= 3/5

Mathematics

1 answer:

BigorU [14]3 years ago

3 0

Answer:

1 r= 68/55

2 no solution

Step-by-step explanation:

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you have been given an engine repair job that has a job time of 7 hours how many minutes should you allow for your job?

Soloha48 [4]

Answer:

$Job\ Time = 420\ minutes$

Step-by-step explanation:

Given

$Job\ Time = 7\ hours$

Required

Determine the job time in minutes

To do this, we simply convert the time to minutes.

$1\ hour = 60\ minutes$

$7\ hours = 7 * 60\ minutes$

So, we have:

$Job\ Time = 7 * 60\ minutes$

$Job\ Time = 420\ minutes$

<em>Hence, the job time in minutes is 420 minutes</em>

3 0

3 years ago

Simplify (5x3− x + 14) − (3x2− 9x + 4).

Ksenya-84 [330]

Answer:

Option A.,

Step-by-step explanation:

(5x3− x + 14) − (3x2− 9x + 4)

First remove the 2 sets of parentheses. Note when we remove the second one we multiply the terms inside by -1. ( Or we might say we distribute the negative over this parentheses.)

= 5x^3 - x + 14 - 3x^2 + 9x - 4

Now we simplify like terms:-

= 5x^3 - 3x^2 + 8x + 10 (answer).

7 0

3 years ago

Read 2 more answers

Justin saves $8 every week. Which equation represents the amount of money Justin has, y, after x number of weeks? IF YOU PUT AN

salantis [7]

Answer:

Step-by-step explanation:

6 0

3 years ago

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Please help is for now

telo118 [61]

Answer:

$2$

Step-by-step explanation:

Given:

$-2(1-4x)=3x+8$

Let's distribute the parenthesis

$-2+8x=3x+8$

Let's subtract $-3x$ from both sides

$-2+5x=8$

Let's add $2$ to both sides

$5x=10$

Now, let's divide both sides by $5$ to get $x$ alone

$x=2$

Hope this is helpful

7 0

3 years ago

Read 2 more answers

Find the value of x. *

Ludmilka [50]

Answer:

13x + 7 + 4x + 15 = 90

17x + 22 = 90

17x = 68

x = 4

4(4) + 15= 16 + 15= 31

13(4) + 7 = 52 + 7 = 59

Step-by-step explanation:

6 0

4 years ago