I need help on this question I just don't understand how to do it

Answers

Answer 1

Answer: The process used in the picture is cross multiplying. Make an x through the numbers and multiply them by each other. That's why 21 was multiplied by 14 and 49 was multiplied by n. The value of n is unknown, so it simplifies to 49n, and 14*21=21.4. So basically to recap, make an x, multiply the terms that are diagonal from each other, write both of the answers next to each other, and put an = sign in between them. If you don't understand I can try to explain differently ☺

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Describe two different methods to find the elapsed time from 2:30pm to 2:58pm

Answers

Answer:

We know that:

" Elapsed time is the time or difference between a beginning time and an ending time ".

Now the two different methods to find the elapsed time is:

Method 1:

Subtract 2:30 directly from 2:58.

2:58 - 2:30 = 0:28

Hence, the elapsed time is 28 minutes.

Method 2:

Round 2:58 to 3:00, subtract 2:30 from 3:00, and at the end subtract 2 to get the desired time(2:58 + 2 = 3:00)

( Since it is easy to calculate the whole numbers).

2:58 is approximately 3:00

3:00 - 2:30 = 30 min

30 min - 2 min = 28 min.

Hence, elapsed times is 28 minutes.

You could substract or you can count up till you get to 2:58pm from 2:30pm

Would someone just give me the answers? k? ok. thx. (plesaeseses)

Answers

1. 2×2×2×2= 16
2. 1/4×1/4= 1/16
3.8×8= 64
4. 4×4×4=64
5.2/3×2/3×2/3= 8/27
6. 0.6×0.6= 9/25

8a. brackets
8b. 109 is the answer
sorry don't know the answer for the question 7.
hope it helps though.

Your new cell phone plan costs $45 per month. You pay an extra $0.05 for every text message sent. If you send 60 texts this month, how much will your bill be?

Answers

$0.05 $45
x 60 = + $3
----------- -------------
$3 $48 per month

recall that two angles are comlementary if the sum of their measures is 90. find the measures of two complementary angles if one angle is twenty-nine times the other angle.

Answers

Answer:

First angle is 3 degree

Second angle is 87 degree

Step-by-step explanation:

Let's assume

second angle is x

we are given

one angle is twenty-nine times the other angle

so, first angle is

$=29x$

we know that these two angles are complementary

so, the sum of their measures is 90

First angle + second angle =90

$x+29x=90$

$30x=90$

$x=3$

now, we can find second angle

Second angle is

$=29* 3$

$=87$

So,

First angle is 3 degree

Second angle is 87 degree

Divide 33 photos into two groups so the ratio is 4 to 7

Answers

The number of parts is:
4+7= 11

33 photos/ 11 parts= 3 photos/part

Group 1: 4 parts* (3 photos/ 1 part)= 12 photos
Group 2: 7 parts* (3 photos/ 1 part)= 21 photos

4:7
4x:7x

4x + 7x = 11x

11x = 33
x =3

4 x 3 = 12
7 x 3 = 21

So 12 and 21 are in a ratio of 4:7 and add up to 33

What's a story problem for 3.05 dividied by 0.05

Answers

Mr. Smith is putting cookie pieces into equal containers for a science experiment. If there are 3.05 of the containers being used and each cookie piece is 0.05 then how many cookie pieces can fir into the select containers?

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11.9x+10.5y=178.5 Help me please