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3 years ago

Which expression is equivalent to 30(1/2 x -2) + 40(3/4y -4)?

Mathematics

2 answers:

leva [86]3 years ago

8 0

Answer:

15x +30y-64

Step-by-step explanation:

I know I'm dum sometimes

Arte-miy333 [17]3 years ago

6 0

Answer:

I think it’s C

Step-by-step explanation:

I know it’s not D or A so if C is wrong then it’s B

Good luck, dm me if u need more answers to this quiz bc most answers arent on brainly or they’re wrong

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Adnan has 20 shirts in his closet.if 3 out of every 5 shirts are striped, how many striped shirts does adnan have in his closet?

vivado [14]

20 ÷ 5 = 4
So there are 4 sets of 5 shirts. If there are 3 striped shirts per 5 then
3 x 4 = 12 striped shirts
Hope it helps!

5 0

3 years ago

Please help!! Write in simplest radical form: √7/8 Show how you figured it out

12345 [234]

Given expression: $\sqrt{\frac{7}{8}}$ .

$\mathrm{Apply\:radical\:rule\:}\sqrt[n]{\frac{a}{b}}=\frac{\sqrt[n]{a}}{\sqrt[n]{b}}$

$=\frac{\sqrt{7}}{\sqrt{8}}$

$\sqrt{8}=\sqrt{2^2\cdot \:2}=2\sqrt{2}$

$\frac{\sqrt{7}}{\sqrt{8}} =\frac{\sqrt{7}}{2\sqrt{2}}$

$\mathrm{Rationalize\:}\frac{\sqrt{7}}{2\sqrt{2}}$

$\mathrm{Multiply\:by\:the\:conjugate}\:\frac{\sqrt{2}}{\sqrt{2}}$

$=\frac{\sqrt{7}\sqrt{2}}{2\sqrt{2}\sqrt{2}}$

$=\frac{\sqrt{14}}{4}$

$=\frac{\sqrt{14}}{4}$ .

3 0

4 years ago

Difference between compounded annually, monthly and daily.

zvonat [6]

Answer:

With monthly compounding, the bank will calculate interest on your account just once per month. It will not update your balance on a daily basis when it calculates how much interest it owes you. Assuming that the APR is the same, accounts with monthly compounding offer a lower APY than accounts with daily compounding.

5 0

3 years ago

Will give brainliest! which scatterplot could have a trend line whose equation is y = -x + 8?

insens350 [35]

Answer:

Step-by-step explanation:

because you started at 8 and the dots are going down