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2 years ago

4(a + 10) = 80 find a

Mathematics

2 answers:

Harman [31]2 years ago

6 0

Answer:

Step-by-step explanation

4(a+10) = 80

4a+40=80

4a=40

a=10

nirvana33 [79]2 years ago

5 0

Answer: x = 4

Step-by-step explanation: To solve this equation, we start by distributing the 4 through the parentheses on the left side.

So we have 4(a) which is 4a and 4(10) which is 40.

So our equation now reads 4a + 40 = 80.

Solving from here, we subtract 40 from both sides of the equation and we have 4a = 40 and dividing both sides by 4, we find that x = 4.

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Naomi deposited money into a savings account that is compounded quarterly at an interest rate of 6%. She thinks this quarterly r

Amiraneli [1.4K]

Answer:Yes, Naomi is incorrect.

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Now, if the interest is quarterly then according to the formula

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so CI= $100(1+\frac{6}{100})^4$ -100 ( here the rate is already given in quarterly)

CI= $100(1.06)^4$ -100= 1.26247696-100=26.247696 rupees=26(approx)

Now, if the compound interest is 1.25 per month then again from the formula-

CI= $P(1+\frac{r/12}{100})^{12n}$ -P

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2 years ago

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love history [14]

Answer:

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Step-by-step explanation:

Area of the figure

Area (small rectangle) left + Area (big rectangle) right
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2 years ago

Read 2 more answers

Which of these choices show a pair of equivalent expressions?

NISA [10]

Answer:

A. 6^2/7 and (√6)^7

Step-by-step explanation:

Because we can't get 6 out of root as a whole we need to use the power to show its value when we do so.

The power of (√6)^7 has is seven and degree of the root is 2 so we have to put 2/7 over 6 when we take it out of root.

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2 years ago

2.5 ( y + ⅖ ) = -13 im really bad at math someone pls help

My name is Ann [436]

Answer:

-5.6

Step-by-step explanation:

first distribute the 2.5

also convert the 2/5 to decimal (0.4) because it's hard to work with both decimal and fraction

2.5y + 2.5*0.4 = -13

2.5y +1 = -13

y = -14/2.5 = -5.6

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3 years ago

Can someone tell me what it is and explain it in an easy way, I'm kind of an idiot

lubasha [3.4K]

1/2 x 3/4
1 x 3 / 2 x 4
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6 0

2 years ago