Re-write 90+45 using the distributive property

Answers

Answer 1

Answer:

9(10*5) this is the answer

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There are 23 classes in the fourth grade. Each grade has 21 students. Write a number sentence that will provide a reasonable estimate for the number of students in the fourth grade. Explain how you found your estimate.

Answers

23 can round to 20 and 21 can also round to 20 so all u do is 20x20=400 so 400 is your estimated answer

Can you multiply these decimals in your head? You should be able to do it very quickly. Can you figure out the trick? 26.9 × 52.8 × 100.1 × 0.00 × 999.9632 = ?

Answers

Answer:

0.00

Step-by-step explanation:

Yes, anyone can multiply these decimals very quickly.

As these decimals include 0 and we know that any number multiply with zero (0) result is always zero (0).

Example: 5 × 0 = 0

⇒ 26.9 × 52.8 × 100.1 × 0.00 × 999.9632 = 0.00

I’m kinda dumb but isn’t it 0 because anything times 0 is 0

bicyclist Mario Cipollini pedaled one stage of the 1999 tour de France in about 3.9 hours If he traveled about 195 kilometers what was his average speed in kilometers per hour

Answers

v=195/3.9=50 km/h

is the answer

What is the slope of the line that passes through the pair of points (-10,14) and (-6,12).

Answers

Answer:

Step-by-step explanation:

(-10,14) and (-6,12)

y2 = 12, y1 = 14, x2 = -6, x1 = -10

Slope m = (y2 - y1)/(x2 - x1)

m = (12 - 14)/(-6 + 10)

m = -2/4

m = -1/2

The equation of line

y - y1 = m(x - x1)

y - 14 = -1/2(x + 10)

y - 14 = -x/2 - 5

y = -x/2 - 5 + 14

y = -x/2 + 9

What is an expression equivalent to (7x-5)-(3x-2)

Answers

The expression equivalent to (7x-5)-(3x-2) is 4x-3

What is an expression?

An expression or mathematical expression is a finite combination of symbols that is well-formed according to rules that depend on the context.

Given is an expression (7x-5)-(3x-2), we need to find an expression equivalent to it,

= (7x-5)-(3x-2)

Opening the brackets and multiply by - sign,

= 7x-5-3x+2

Combine the like terms,

= 4x-3

Hence, the expression equivalent to (7x-5)-(3x-2) is 4x-3

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$(7x-5)-(3x-2)=\n7x-5-3x+2=\n4x-3$