4 years ago

Sarah is starting a new job.

Mathematics

1 answer:

Natali [406]4 years ago

7 0

Solve this equation:
300+5x=450+2x
3x = 150
x = 50
so the answer is 50 books

You might be interested in

URGENT Help Please!

gayaneshka [121]

Answer:

Hi can u help me please

I don't know the answer to this

Step-by-step explanation:

8 0

3 years ago

Express:50000000 in exponeutialform

Margarita [4]

Answer:

5^7

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Need help! Law of cosines...find b round to the nearest tenth please

dusya [7]

ANSWER

$B = 27.8 \degree$

EXPLANATION

The law of cosine is given by the formula:

${b}^{2} = {a}^{2} + {c}^{2} - 2bc \cos(B)$

From the diagram,

a=17, b=8, c=16

We substitute the given values into the formula to obtain:

${8}^{2} = {17}^{2} + {16}^{2} - 2(17)(16)\cos(B)$

$64 = 289+ 256- 544\cos(B)$

$64 = 545- 544\cos(B)$

$64 - 545 = - 544\cos(B)$

$- 481 = - 544\cos(B)$

$\frac{ - 481}{ - 544} = \cos(B)$

$cos(B) = 0.88419$

$B = \cos ^{ - 1} (0.88419)$

$B = 27.8 \degree$

3 0

4 years ago

Read 2 more answers

-10 times 1 equals w+5.3

Inessa [10]

-10(1) = w + 5.3

-10 = w + 5.3

-10 (-5.3) = w + 5.3 (-5.3)

w = -15.3

hope this helps

8 0

3 years ago

Read 2 more answers

Solve 2(x + 1) + 4 = 8

ahrayia [7]

Answer: