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3 years ago

The two-way table shows the number of students in a school who like painting and/or dance.

Mathematics

2 answers:

KATRIN_1 [288]3 years ago

4 0

The total for liking and not liking painting is 51.

28 like painting, so to find the missing number subtract 28 from 51.

The missing number is 23

lbvjy [14]3 years ago

3 0

Answer: The missing number is 23!

Step-by-step explanation:

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Jack has twice as many dimes as quarters. If the total value of the coins is $6.30, how many dimes does he have?

ycow [4]

Answer:

Number of dimes = 28

Step-by-step explanation:

Given that:

Worth of coins = $6.30 = 6.30 * 100 = 630 cents

Let,

x be the number of dimes

y be the number of quarters

According to given statement;

x = 2y Eqn 1

10x+25y = 630 Eqn 2

Putting x = 2y in Eqn 2

10(2y) + 25y = 630

20y + 25y = 630

45y = 630

Dividing both sides by 45

$\frac{45y}{45}=\frac{630}{45}\\y=14$

Putting y=14 in Eqn 1

x = 2(14)

x = 28

Hence,

Number of dimes = 28

4 0

3 years ago

Which number is prime 15, 24, 41, 62

Juli2301 [7.4K]

Forty-one is a prime number because it can multiply itself by one.

7 0

3 years ago

the recipe for pumpking pie instructs you to bake the pie at 425∘F, for 15 minutes and then reduce the oven temperature to 350∘F

lakkis [162]

Answer:

ΔT = -75°F

Step-by-step explanation:

ΔT = T₁ - T₀ = 350 - 425 = -75°F

4 0

3 years ago

Evaluate f(x)= 1.8 X 2^x for x=6 A: 115.2 B: 2176.78 C: 21.6

attashe74 [19]

By substitution
f(6) = 1.8×2^(6)
= 1.8×64
= 115.2

3 0

3 years ago

Read 2 more answers

I need help solving for X and Y

IgorC [24]

Answer:

y = 4 ; x = 4√2

Step-by-step explanation:

This is a 45° 45° 90° triangle meaning the legs will equal each other and the hypotenuse will be equal to the length of the legs times √2.

4 0

3 years ago