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victus00 [196]
3 years ago
14

How did I get the answer to these two problems

Mathematics
1 answer:
diamong [38]3 years ago
3 0
That the steps to get your answers

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IT COST 859.32 TO HAVE A SCHOOL DANCE A. HOW MANY TICKETS MUST BE SOLD TO COVER THE COST. B HOW MANY TICKETS MUST BE SOLD TO MAK
telo118 [61]
<span>If each ticket is sold for $ 9.20 then you will need to sell 94 tickets to cover the cost of the dance. You will then need to sell 200 tickets to make enough money to cover the dance and to make a profit of $ 980.68</span>
7 0
3 years ago
Which expression is equivalent to Negative 28 x y 35 y? 7 y (Negative 4 x y 5 y) 7 x (negative 4 x 5 y) 7 x (negative 4 y 5 y) 7
GREYUIT [131]

You can use the distributive property of multiplication over addition to find the equivalent expression to the given expression.

The expression which is equivalent to the given expression is given by

Option D: 7y(-4x + 5)

<h3>What are equivalent expressions?</h3>

Those expressions who might look different but their simplified forms are same expressions are called equivalent expressions.

<h3>What is distributive property of multiplication over addition?</h3>

Suppose a, b and c are three numbers. Then we have:

a(b + c) = a \times b + a \times c

(a(b+c) means a multiplied to (b+c). The sign of multiplication is usually hidden when using symbols and both quantities which are in multiplication are written together without space)

<h3>Using the above property and the fact that 28 and 35 are multiples of 7 to get the equivalent expression</h3>

The given expression is -28xy + 35y

Since 28 = 7 times 4 and 35 = 7 times 5

Thus,

-28xy + 35y = -7 \times 4 \times x \times y + 7 \times 5 \times y = 7y(-4x + 5)

Thus,

The expression which is equivalent to the given expression is given by

Option D: 7y(-4x + 5)

Learn more about equivalent expressions here:
brainly.com/question/10628562

3 0
3 years ago
Solve 0.9(x-20)=830
Dmitry [639]

Answer:

942.22

Step-by-step explanation:

0.9(x-20)=830

Distribute .9

.9x -18 =830

Add 18 to each side

.9x -18+18=830+18

.9x = 848

Divide each side by .9

.9x/.9 = 848/.9

x =942.22222222

To the nearest hundredth

942.22

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3 years ago
A coin was flipped 150 times. The results of the experiment are shown in the following table:
Wewaii [24]
<span>It is 10% higher than the theoretical probability.</span>
4 0
4 years ago
Hurry!! Worth 10 points
Darina [25.2K]

Answer:

its D

Step-by-step explanation:

8 0
3 years ago
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