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3 years ago

If you hade to use Algebar tiles to do the charge method subtraction and you problème is -9 - (-2)

Mathematics

2 answers:

Bas_tet [7]3 years ago

7 0

Answer:

-7

Step-by-step explanation:

Well the subtraction problem is now going to be a adding and the (-2) is now positive 2 so I'm thinking the answere is -7

gizmo_the_mogwai [7]3 years ago

6 0

Answer:

-9 - (-2)= -7

Step-by-step explanation:

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Julia makes friendship bracelets. She was recently given nine bracelets from different people. At Christmas, she plans to give a

sergey [27]

Answer:

The number of bracelets with she start are 48.

Step-by-step explanation:

Given:

Julia was recently given 9 bracelets. She plans to give 1/3 of her bracelets. She will be left with 23.

Now, we need to find with how many did she start.

Let the bracelets with she start be $x$ .

She plans to give $\frac{1}{3}ofx$ = $\frac{x}{3}$ .

According to question:

$x-9-\frac{x}{3}=23$

On solving the equation:

$\frac{3x-27-x}{3} =23$

Multiplying both sides by 3 we get:

$3x-27-x=69$

$2x-27=69$

Adding both sides by 27 and then dividing by 2 we get:

$x=48$

Therefore, the number of bracelets with she start are 48.

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3 years ago

Problem 1: Write each expression in the form a^b, without using any radicals.

VARVARA [1.3K]

By radical do you mean the square root symbol?

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2 years ago

Four bread rolls weigh a total of 3/5 pounds. houw much does each bread roll weigh?

NikAS [45]

Answer:

each bread roll weighs 3/20 pounds. (you can also write it as 0.15 pounds)

Step-by-step explanation:

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2 years ago

Rewrite the expression as a multiple of a sum of two numbers with no common factor. 30 + 12

fomenos

The expression 30 + 12 can be rewritten as 2x(13+8)

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3 years ago

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In frequency curve the points are joined by bits of a straight line. True/False

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