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3 years ago

I NEED HELP PLS!!!! I DONT UNDERSTAND THIS!! PLS TELL ME THE CORRECT ANSWER AND HOW YOU GOT IT STEP BY STEP!!!!

Mathematics

1 answer:

padilas [110]3 years ago

5 0

I like to start with changing fractions to decimals. It seems easier that way.
5/8 = 0.625 cups

Now divide 4 by 0.625
4 / 0.625 = 6.4

Noor can offer 6 cups with an extra 2/5 of a cup left. He can offer the 2/5 of a cup to a friend, so he can offer 7 friends some hot chocolate!

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Jessica has an account with a credit union. Her account earns 2.2% simple interest yearly. Exactly a year and a half ago, she op

Sergeu [11.5K]

Interest earned= $\frac{PRT}{100}$
I= $\frac{900*2.2*1.5}{100}$
I= <span>$ 29.70</span>

6 0

3 years ago

Which expressions are equivalent to 7^8 x 7? Select all that apply.

nlexa [21]

Answer:

Step-by-step explanation:

7^8*7=

5764801 * 7= 40353607

A. 7^3*7^3= 343*343= 117649 <--- not the answer

B. 7^18/7^9= 40353607 <---- right answer

C. (7^3)^3= 343^3= 40353607 <------ right answer

D. 7^5+7^4= 16807+2401= 19208 <---- not the answer

E. 7^5*7^4= 16807*2401= 40353607 <---- right answer

7 0

2 years ago

5.5 cm<br> What is the circumference of this circle?<br> cm

FromTheMoon [43]

Answer:

23.76

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

The depth of a lake is 15.8m

Leya [2.2K]

a. Jada got the measurement 16m.

b. The measured depth differ 0.2m from the actual depth.

c. There is a 12.66% error in calculation.

Step-by-step explanation:

Given,

The depth of lake = 15.8 m

a. Jada accurately measured the depth of the lake to the nearest meter. What measurement did Jada get

When a digit after the decimal point is 5 or more than that, the number before decimal is rounded to the next number.

Therefore,

15.8 rounded to nearest number is 16.

The depth of lake measured by Jada = 16 m

Jada got the measurement 16m.

b. By how many meters does the measured depth differ from the actual depth?

Difference = Approx - Exact

Difference = 16 - 15.8 = 0.2m

The measured depth differ 0.2m from the actual depth.

c. Express the measurement error ad a percentage of the actual depth.

Percent error = $\frac{|approx-exact|}{exact}*100$

Percent error = $\frac{|2|}{15.8}*100 = \frac{200}{15.8}$

Percent error = 12.66%

There is a 12.66% error in calculation.

Keywords: percent, error

Learn more about percent at:

#LearnwithBrainly

4 0

3 years ago

Perform the indicated operation and write the answer in the form a + bi.

Doss [256]

Answer: .

Step-by-step explanation:

6 0

3 years ago