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Sliva [168]
3 years ago
7

Of the 140 7th graders, 15% earn the Presidential Physical Fitness award. How many students earn the award? *

Mathematics
1 answer:
GenaCL600 [577]3 years ago
8 0

Answer:

21 students

Step-by-step explanation:

the percent proportion is a/w = p/100

where A is a part of the whole W, and p% or p/100 is the percent

a/140 = 15/100 (Substitute w =140 and p= 15)

a times 100=140 times 15 (cross poducts property)

100a=2100  (Multiply)

100a/100 = 2100/100 (divide both sides by 100)

a = 21 (simplify)

So, 21 students win the award.

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X=-2y-3 4y-x=9 determine the point of intersection of each pair of lines if one exists. ​
Drupady [299]

Answer: (-5,1)

Step-by-step explanation:

x=-2y-3

4y-x=9

4y-(-2y-3)=9

4y+2y+3=9

6y+3=9

6y=6

y=1

x=-2y-3

x=-2-3

x=-5

8 0
3 years ago
On January 11, Frank Morgan spent $228 on taxable merchandise at Wesley's Discount Clothing. The combined state and local sales
ryzh [129]

Answer:

Customer must pay a Total Amount of $240.

Step-by-step explanation:

Given:

Amount spent = $228

Sales tax = 5.25%

We need to find the Total Amount which need to be paid.

First we will find the amount paid in tax.

Amount paid in tax is equal to Percentage of sales tax multiplied with Amount spent and then divide by 100.

Framing the equation we get;

Amount paid in tax = \frac{5.25}{100}\times 228= \$11.97

Now Total Amount which need to be paid is equal to sum of Amount spent and Amount paid in tax.

Framing in equation form we get;

Total Amount which need to be paid = \$228 +\$11.97 = \$239.97

Rounding to nearest cent we get;

Total Amount which need to be paid = $240

Hence, Customer must pay a Total Amount of $240.

8 0
3 years ago
I’m literally begging someone please help (just number 10. show work)
Sladkaya [172]

Answer:

h =  \frac{2A}{b +B }

Height= 16 feet

Step-by-step explanation:

Please see attached picture for full solution.

6 0
3 years ago
Write the quadratic equation whose roots are 3 and 1, and whose leading coefficient is 1
Serhud [2]

Answer:

x² - 4x + 3 = 0

Step-by-step explanation:

given roots x = a and x = b then the corresponding factors are

(x - a) and (x - b)

the equation is then the product of these factors , that is

(x - a)(x - b) = 0

given

roots x = 3 and x = 1 , then factors are (x - 3) and (x - 1) , then

(x - 3)(x - 1) = 0 ← expand factors using FOIL

x² - 4x + 3 = 0

6 0
2 years ago
Joni sold 376 tickets for the school play. Student tickets cost $4 and adult tickets cost $7. Joni’s sales totaled $2080.
Ostrovityanka [42]

Answer:

(4s+7a) 376=2080

Step-by-step explanation:

(4s+7a) 376=2080

3 0
2 years ago
Read 2 more answers
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