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3 years ago

What are exactly two sums that are equivalent to 7(10a+3b)

Mathematics

1 answer:

lina2011 [118]3 years ago

7 0

7(9a+4b) and 7(8a+5b)

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What is the probability of flipping a coin 50 times and getting tails 24 times or

Allisa [31]

Answer: 44.4%

Step-by-step explanation:

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3 years ago

Is 1/4 of 8 equal to 2

Svet_ta [14]

Yes, 1/4 of 8 is equal to two.
1/4x8=2
Hope this helps! :)

5 0

3 years ago

Read 2 more answers

If you write out the numbers from 1 through 40 (including 1 and 40), how many numbers have a "5" in them?

GaryK [48]

Answer:

Step-by-step explanation:

1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40

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3 years ago

Melissa, Dan, and Henry have $87 in their wallets. Dan has 3 times what Henry has. Melissa has $8 less than Henry. How much does

puteri [66]

Answer:

Henry has $19, Dan has $57, and Melissa has $11

Step-by-step explanation:

Let x represent how much money Henry has

Since Dan has 3 times what Henry has, his amount is 3x

Since Melissa has $8 less than Henry, her amount is x - 8

Create an equation that sets these 3 values equal to 87, then solve for x

(x) + (3x) + (x - 8) = 87

5x - 8 = 87

5x = 95

x = 19

So, Henry has $19

Find how much Dan has by multiplying 19 by 3

19(3)

= 57

Find how much Melissa has by subtracting 8 from 19

19 - 8

= 11

So, Henry has $19, Dan has $57, and Melissa has $11

8 0

2 years ago

Read 2 more answers

How is an equation like an expression? How is it different?

morpeh [17]

Answer:

See explanation.

Step-by-step explanation:

An expression is a set of terms that are combined using addition, subtraction, multiplication, or division. The following are examples of expressions:

$2x-1$

$5y+8$

$2$

Note: expressions do not equal anything.

In contrast, equations are expressions that equal at least one term. The following are examples of equations:

$2y-4=26$

$4x-4=0$

$x=10$

$y=x+2$

Note: equations do equal a term, as shown in the examples.

3 0

2 years ago