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Juliette [100K]
3 years ago
6

There are 3 students to 1 adult on a field trip. You need to find the number of adults needed for 24 students. What would the se

cond ratio of the proportion look like if the first proportion is as follows: (s is just short for students, and a is just short for adult cause it would make the fraction look weird if I didn't use letters). 30 points!!!!!!!!!!!!!!!!!!!!!
(A) 3s/s

(B) 3/1

(C) 24s/x

(D) 1/3

(E) x/24s
Mathematics
1 answer:
coldgirl [10]3 years ago
5 0

Answer:

a = 24*1/3

a =8  

Step-by-step explanation:

We are using proportions to solve this problem by putting students over adults

students         3                   24

--------------- = ---------------  = -------------

adults                 1                   a

where a is the unknown number of adults

Using cross products

3a=24*1

Divide by 3

a = 24*1/3

a = 24/3

a = 8

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Suppose you can work at most a total of 25 hours per week. Baby-sitting, x, pays $6 per hour and working at the grocery store, y
Andrei [34K]

Answer:

<u><em>y=7  </em></u><u>number of hours at grocery store</u>

<u><em>x=18 </em></u><u>number of hours at baby- sitting</u>

Step-by-step explanation:

According to the information provided.

x is number of hours at baby- sitting

y is number of hours at grocery store

total number of hours worked

<em>1) </em><em>x+y =25</em>

total earn in a week

<em>2) </em><em>x*$6 + y* $9 = $171</em>

<em />

<em>from equation 1</em>

x+y=25

x= 25-y

<em>we place the above derived equation in equation 2 </em>

x*$6 + y* $9 = $171

(25-y)*$6 + y* $9 = $171

(25*6) -6y +9y =171

150+3y=171

3y=171-150

3y=21

<u><em>y=7  </em></u><u>number of hours at grocery store</u>

x= 25-y

x= 25-7

<u><em>x=18 </em></u><u>number of hours at baby- sitting</u>

3 0
3 years ago
What percent of 24 is 18? 60 is what percent of 48? Write 1.052 as a percent.
ycow [4]

Answer:

24 of 18 is 75%

60 of 48 is 80%

1.052 is 105.2%

Step-by-step explanation:

4 0
3 years ago
Please help I give brainliest
finlep [7]

Answer:

9.5 trust me

Step-by-step explanation:

sin 32 = x / 18

x = 9.5

5 0
3 years ago
In the given diagram, what is the measure of ∠ABC of parallelogram ABCD?
nata0808 [166]
<h3>Answer: C) 136 degrees</h3>

The known acute angle of the triangle is 46 degrees, so the unknown acute angle of that triangle is 90-46 = 44 degrees. In other words, the two acute angles of any right triangle must add to 90, so 46+44 = 90.

The 44 degree angle is adjacent to angle ADC, and it adds to angle ADC to form 180 degrees.

If x is the measure of angle ADC, then

44+(angleADC) = 180

44+x = 180

x = 180-44

x = 136

angle ADC = 136 degrees

For any parallelogram, the opposite angles are always congruent. Therefore, angle ABC is equal to angle ADC = 136, making ABC = 136 as well.

3 0
3 years ago
Read 2 more answers
Mr. Carter drove 638 miles the first weekend. He drove 243 miles the second weekend.
zaharov [31]
638-243 = 395 miles

rounding up, it would be 400 miles
7 0
3 years ago
Read 2 more answers
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