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3 years ago

11

Can someone make me a word problem for 9 x (13 + 6 - 7)? I'm bad at making word problems.

2 answers:

Katarina [22]3 years ago

5 0

Andrea earns 13 dollars from babysitting and then earns 6 dollars as a tip. She then spent 7 dollars. If she keeps this same amount of money for 9 days, how much money will she have?

Oksi-84 [34.3K]3 years ago

3 0

Answer:

Danny buys 13 candy canes for a party. He realizes he didn’t buy enough and buys 6 more. Danny then gives away 7 to his friend Sam. He heads back to the store because no one else biight candy canes and buys 9 times as many as he had left.

Hope this helps please give brainliest if you can!!

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Factorise for 4x + 2

lord [1]

Answer:

2(2x + 1)

Step-by-step explanation:

4x = 2 * 2x

2 = 2 * 1

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3 years ago

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galina1969 [7]

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3 years ago

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PIT_PIT [208]

0.90 is the correct answer or B

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4 years ago

Four grey polygons join together as shown in the diagram. I’ve calculated angle a but I don’t know angle b. Angle a is 108

mr Goodwill [35]

Answer:

Part 1) $a=108^o$

Part 2) $b=24^o$

Step-by-step explanation:

Part 1) Find the measure of angle a

we know that

The formula to calculate the measure of the interior angle of a regular polygon is equal to

$\frac{180^o(n-2)}{n}$

where

n is the number of sides of the regular polygon

For the regular pentagon in the figure

n=5

substitute in the formula

$a=\frac{180^o(5-2)}{5}$

$a=\frac{180^o(3)}{5}$

$a=108^o$

Part 2) Find the measure of angle b

Remember that a regular polygon has equal sides and equal interior angles

so

In the figure , the length of the side of the two smaller equilateral triangles is equal to the length of the side of the regular pentagon

therefore

The triangle in white of the figure is an isosceles triangle

The measure of the vertex angle of the isosceles triangle is equal to

$360^o-(108^o+60^o+60^o)=132^o$

Remember that

The sum of the interior angles of triangle must be equal to 180 degrees

so

$2b+132^o=180^o$

solve for b

$2b=180^o-132^o$

$2b=48^o$

$b=24^o$

7 0

3 years ago

Which expression is equivalent to

ki77a [65]

Answer:

Step-by-step explanation:

The question was copied incorrectly. You need to put parentheses around the denominator.

answer: b

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3 years ago