2 years ago

Weight of Area

Mathematics

2 answers:

Vlad [161]2 years ago

7 0

Answer:

(95+89+80+94)/400×100/25=3.58is required grade

Hitman42 [59]2 years ago

5 0

(95x0.05) + (89x0.25) + (80x0.20) + (94x0.50)

= his grade is 90

convert all the percentages to decimals
multiply each decimal to its corresponding grade
add all the products to get: 90

You might be interested in

If a shop earns a profit of 1300 on every heater sold and incurs a loss of 1800 on every fan sold, find out its total profit/ lo

erastovalidia [21]

Answer:

Total profit is 26,900.

Explanation

If the profit for selling a heater is 1300 than the profit of selling 25 heaters is 32500.

If the loss of selling a fan is 800 than the loss of selling 7 fan is 5600.

Minus 32500 with 5600 to get the profit.

26,900

5 0

2 years ago

One number is 7 times another number. The product of the two numbers is 252. Find the two numbers.

Nitella [24]

Step-by-step explanation:

x =7y ----(1)

xy=252 ----(2)

(1) into (2):

(7y)(y) = 252

$7 {y}^{2} = 252 \\ 7y = \sqrt{252}$

7y=15.874....

y=2.27

y value into (1)

x= 7(2.268)

x=15.87

the two numbers are 15.87 and 2.27 (Ans)

6 0

2 years ago

A shoe store marks up its merchandise by 8%. What was the selling price of a pair of shoes whose wholesale price is $24.50? Show

Alika [10]

Answer:

Result: $26.46

Steps:

$24.50 (increase) + 8% = $26.46

24.50 x (1 + 8%) = 24.50 x (1 + 0.08) = 26.46

I'm truly sorry if my math is incorrect.

Bye, have a great day/night :)

4 0

2 years ago

Read 2 more answers

Rex mixed x liters of fruit syrup with y liters of water to make a fruit punch. Three times the number of liters of water he mix

irga5000 [103]

3y = 2x + 6
x + y = 7

y = 7 - x
3(7 - x) = 2x + 6
21 - 3x = 2x + 6
21 - 6 = 2x + 3x
15 = 5x
15/5 = x
3 = x

x + y = 7
3 + y = 7
y = 7 - 3
y = 4

Solution is (3,4)

6 0

3 years ago

Read 2 more answers

3. A big league pitching coach tries to limit his pitchers to 110 pitches per game. If the pitcher has

krek1111 [17]

110 minus 52 is 58 so the answer would be 58 more pitches

5 0

3 years ago