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JulijaS [17]
3 years ago
11

Help! I need work too. I have a test tomorrow and I don't know how to solve this.

Mathematics
2 answers:
sleet_krkn [62]3 years ago
5 0
20        7
----- = ------
100      x

100 x 7 = 700
700/20 = 35
X = 35
professor190 [17]3 years ago
3 0
The answer is 35% put 7/20= n/100 do cross multiplication, 7×100= 700 then do 700/20= 35%
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The distance between Maggie’s home and her school is 5,280 yards. (Hint: 1 mile = 1,760 yards.)
Mariulka [41]
1 mile = 1760 yards
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4 0
3 years ago
The quadrilaterals JKLM and PQRS are similar.
Sveta_85 [38]

Answer:

x = 2.8

Step-by-step explanation:

If the quadrilaterals are similar, then the ratios of corresponding sides will be equal:

KL : QR = 4 : 5.6 = 4 / 5.6 = 5/7

JM : PS = 7 : 9.8 = 7 / 9.8 = 5/7

LM : RS = 3 : 4.2 = 3 / 4.2 = 5/7

This shows that the ratio of KJ : QP = 5/7

KJ : QP = 2 : x = 2 / x

Therefore, \frac{2}{x}=\frac{5}{7}

cross multiply:  14 = 5x

Divide both sides by 5:  x = 2.8

8 0
2 years ago
For each model below write the portion of the grid that is shaded as a percent and as a fraction. EXPLAIN.
Rudik [331]

Answer:

Just find the area of each shape .fir the first triangle it will be (0.5 x6 x6) so the answer is 18 . So the shaded part is 18 out of 100 or 18% . And so on for the trapezoid and the combined figure of square and triangle together

Step-by-step explanation:

5 0
3 years ago
You ask 125 randomly chosen students their favorite sport. There are 1300 students in the school. Based on the results of the su
yan [13]

<u><em>780 students</em></u>

<u><em></em></u>

<em>Set up a proportion.</em>

<em />

<em>75 / 125 = x/1300</em>

<em />

<em>125  10.4 = 1300</em>

<em />

<em>75 * 10.4 = 780</em>

<em />

<em>x=780</em>

5 0
3 years ago
Find the sum of -3x^2-x-10 and 10x^2+x-10
Jobisdone [24]

Answer:

7x^2-20

Step-by-step explanation:

6 0
2 years ago
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