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Aleksandr-060686 [28]
2 years ago
8

Dominique wants to use the distributive property to find the value of 15·37+15·63 mentally. Which expression can she use?

Mathematics
2 answers:
olga55 [171]2 years ago
8 0
She can use 15(37+63)
kotegsom [21]2 years ago
6 0

15 ( 37 + 63 )

[Need a reason? Let me know and I can tell why.]

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Plz help Evaluate. 5⋅40
lana [24]

<em><u>Answer: =200</u></em>

Step-by-step explanation:

This question it's about PEMDAS. This lesson it's about order of operations. p-parenthesis, e-exponents, m-multiply, d-divide, a-add, and s-subtract. It can also go left to right. multiply by the numbers. product it's going to be multiply by the numbers, fractions, factors, and multiples.

5*40=200

40*5=200

200/5=40

200/40=5

Hope this helps!

Thanks!

Have a great day!


4 0
3 years ago
Please help solve 1, and 2
Vadim26 [7]

Answer:

Step-by-step explanation:

1). WXYZ is a rectangle,

  Properties of a rectangle,

  i). Opposite sides are equal and parallel.

  ii). All interior angles measure 90°.

  iii). Diagonals are equal in measure.

a). WY = ZX = 30

 Therefore, ZT = \frac{1}{2}(ZX)

                    ZT=15

b). WY = ZX = 45

c). Since, WY = ZX,

    (4b - 16) = (3b + 5)

    4b - 3b = 16 + 5

     b = 21

2). GOAT is a rhombus and m∠OGA = 35°,

    a). m∠TGA = m∠OGA = 35°

    b). m∠GXO = 90°

    c). m∠GXT = 90°

    d). Since adjacent angles of a rhombus are supplementary,

         m∠OGT + m∠GTA = 180°

         70° + m∠GTA = 180°

         m∠GTA = 110°

         m∠GTO = \frac{1}{2}(m\angle GTA)

                        = \frac{1}{2}(110^{\circ})

                        = 55°

     e). Since, opposite angles of a rhombus are equal,

          m∠OGT = m∠OAT = 70°

     f). m∠GOA = m∠GTA = 110°

7 0
2 years ago
(x+5)(x+5)=49<br> Solve the equation for x
Savatey [412]

Answer:

X=2

Step-by-step explanation:

We can change the left side of the equation to (x+5)² which gives us

(x+5)²=49  now to get rid of the squared we can take the square root of both sides which gets us to x+5=7 and now subtract 5 from both sides to get your final answer of x=2

I hope this helps and please don't hesitate to ask if there is anything still unclear!

7 0
3 years ago
Read 2 more answers
in a toy store, the ratio of the dolls to teddy bears is 9:3. If the store has 240 dolls, how many teddy bears are in the store?
mafiozo [28]

If the ratio is 9 to 3 and there are 240 dolls divide 240 by 3 which equals 80

:)

7 0
2 years ago
Factor the expression: -5b - 25
klemol [59]

Answer:

-5(b+5)

Hope I helped sorry if I didnt

8 0
3 years ago
Read 2 more answers
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