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3 years ago

Question : A soccer team played 160 games and won 65 percent of them. How many games did it win?

Mathematics

1 answer:

Zepler [3.9K]3 years ago

8 0

104 games, you would first translate the percent to a decimal which would be .65 and multiply 160 by .65.

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There are 3 boys for every 4 girls in a class. If there are 16 girls, how many boys are there?

ololo11 [35]

12 simple mental math ty

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2 years ago

Read 2 more answers

A pyramid-shaped vat has square cross-section and stands on its tip. The dimensions at the top are 2 m × 2 m, and the depth is 5

Strike441 [17]

Answer:

the water level increases at a rate of 1.718 m/min when the depth is 4 m

Step-by-step explanation:

the volume of the pyramid is

V = (1/3)(height)(area of base) = 1/3 H*L²

For the diagonal in the pyramid

tg Ф = Side Length/ Height = L / H = x / h

where h= depth of water , x= side of the corresponding cross section

therefore x= L *h/H

the volume of the water is

v= 1/3 h*x² = 1/3 (L/H)² h³

in terms of time

v = Q*t

then

Q*t = 1/3 (L/H)² h³

h³ = 3*(H/L)² *Q *t

h = ∛(3*(H/L)² *Q *t) = ∛(3*(H/L)² *Q) *∛t = k* ∛t , where k=∛(3*(H/L)² *Q)

h = k* ∛t

then the rate of increase in depth is dh/dt

dh/dt = 1/3*k* t^(-2/3)

since

t = (h/k)³

dh/dt = 1/3*k* t^(-2/3) = 1/3*k* (h/k)³ ^(-2/3) = 1/3*k* (h/k)^(-2) = 1/3 k³ / h²

= 1/3 (3*(H/L)²*Q) / h² = (H/L)²*Q /h²

dh/dt= [H/(h*L)]²*Q

replacing values, when h=4m

dh/dt= [H/(h*L)]²*Q = [5m/(4m*2m)]² * (3m³/min)= 1.718 m/min

8 0

3 years ago

20+x=25 so I'm doing addition property of equality so what does this mean

Stels [109]

The addition property of equality is the idea we can add some number to both sides of an equation. You must add the same number to both sides to keep things balanced.

It's asking "what number can we add to both sides of this equation so that we isolate x?"

Think of 20+x as x+20. We can rearrange terms since adding in any order doesn't matter (eg: 2+3 = 3+2 = 5)

So we really have this equation: x+20 = 25

We can add -20 to both sides to cancel out the +20 on the left side

x+20 = 25

x+20+(-20) = 25+(-20) ...... add -20 to both sides

x = 5

This is the exact same as subtracting 20 from both sides. So 5 will go where x is, meaning that 20+x = 20+5 = 25

3 0

2 years ago

What percent of 628 is 931?

3241004551 [841]

The answer is 67.45% but you can round it to a 67%

7 0

3 years ago

1. Jackie is saving money to buy a new cell phone. The cell phone costs $175, but she has

Serggg [28]

Answer:

32%

Step-by-step explanation:

<h3>Given that:</h3>

Jackie is saving money to buy a new cell phone.
The cell phone costs $175
she has already saved $56

The percent of the cost of the cell phone has Jackie saved

In order to find the percent of the cost of the cell phone has Jackie saved,

divide the cost of the cell phone by the amount of the money Jackie saved
Multiply the result (1) by 100

See below how it's done:

$\dfrac{56}{175} \times 100$

dividing yields:

$0.32 \times 100$

multiplying yields:

$32\%$

Alternative:

Instead of dividing,we can consider reducing the fraction and multiply that with 100 to get the answer.

$\dfrac{56}{175} \times 100 \\ \implies \frac{8}{25} \times 100 \\ \implies 8 \times 4 \\ \implies \boxed{32\%}$

In conclusion:

Jackie has saved 32% of the cost of the cell phone

7 0

1 year ago