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3 years ago

85/100 = x/80. What is the unknown quantity?

Mathematics

2 answers:

Natasha2012 [34]3 years ago

7 0

85 x 80 = 6800

6800/100 = 68

x = 68

love history [14]3 years ago

6 0

Cross multiply then flip equation
85 * 80 and x * 100
6800 = 100x
100x = 6800

Now divide each side by 100
100x ÷ 100 = 6800 ÷ 100
x = 68

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What is 4 x 1 1/5 multiply a fraction or mixed number by a whole number

OverLord2011 [107]

If you want it in a decimal form it is 8.8
In fraction form it is 44/5, or 8 and 4/5

4 0

3 years ago

Josh will take 10 tests in five weeks at school how many tests will he have taken after seven weeks

lbvjy [14]

10(the number of tests) divided by 5(the amount of weeks)=2. That is 2 tests every week. 2x7 weeks is 14 tests. Or this could be a trick question and he could have only had tests for 5 weeks.

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3 years ago

Select the correct answer. What is the solution to |x − 4| ≥ 7? A. -3 ≤ x ≤ 11 B. -11 ≤ x ≤ 3 C. x ≥ 11 or x ≤ -3 D. x ≥ 3 or x

hichkok12 [17]

Answer:

C) x ≥ 11 or x ≤ -3

Explanation:

Given following: |x − 4| ≥ 7

Apply absolute rule: If |u| ≥ 0 then u ≤ -a, u ≥ a

Solving stepwise:

⇒ x - 4 ≤ -7, x - 4 ≥ 7

<u>change sides</u>

⇒ x ≤ -7 + 4, x ≥ 7 + 4

<u>add/subtract integers</u>

⇒ x ≤ -3, x ≥ 11

6 0

3 years ago

Read 2 more answers

Monica took out a 30-year loan for $130,000 at an APR of 8.4%, compounded monthly, and she is making monthly payments of $990.39

Over [174]

Answer: $ 40331.781 (Approx)

Step-by-step explanation:

Let Monica pay off $ x in 12 years,

Thus, for 12 years, his present value, PV = $ x

Given, APR of the loan = 8.4% = 0.084

Thus, the monthly rate of the loan, r = 0.084/12 = 0.007

The number of period in 12 years, n = 144

And, the monthly payment, P = $ 990.39

Thus, by the formula,

$\frac{r(PV)}{1-(1+r)^{-n}}=P$

$\frac{0.007 x}{1-(1+0.007)^{-144}} = 990.39$

$\frac{0.007 x}{1-0.36623195919}=990.39$

$\frac{0.007 x}{0.6337680408 } = 990.39$

$0.007 x=990.39\times 0.6337680408$

$0.007 x=627.677529937$

$x=89668.2185624$

Thus, He pay off $ 89668.2185624 of the original amount of the loan.

⇒The amount of loan left after 12 years

= 130,000 - 89668.2185624

=40331.7814376 ≈ $ 40331.781

8 0

4 years ago

Read 2 more answers

Please help me with this geometry!!

nalin [4]

Answer:

10.

angle KNP = 53

angle LNK = 37

angle JNL = 143

angle JNP = 127

11.

145

12.

angle R = 71

13.

angle 3 = 33

14.

Angle A = 38

Angle B = 52

Make sure to double check by inputting answers.

Step-by-step explanation:

4 0

3 years ago