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marta [7]
3 years ago
5

M−4+m−5 how do I solve this ?

Mathematics
1 answer:
attashe74 [19]3 years ago
6 0

Answer:

2m - 9

Step-by-step explanation:

To simplify this, we need to combine like terms. m + m = 2m and -4 - 5 = -9 so the simplified version would be 2m - 9.

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6th grade math help me pleaseeee...
iren2701 [21]

Answer:

-3.8

Step-by-step explanation:

u = 3.8

u × -1 = 3.8 × -1

-u = -3.8

3 0
3 years ago
A bookstore had 45 copies of a magazine. Yesterday, it sold 13 of them. Today, it sold 23 of what remained. How many copies does
Elan Coil [88]

Answer:

9

Step-by-step explanation:

Total initially in bookstore = 45

Sold 13copies, remaining copies = 45-13= 32

Sold 23 copies again, remaining copies = 32-23 = 9

Copies left = 9

6 0
3 years ago
What is the total surface area of the rectangular pyramid below
Novosadov [1.4K]

Answer:

<h2>S.A. = 225 ft²</h2>

Step-by-step explanation:

We have

the rectangle 12ft × 6ft

two triangles with the base b = 12ft and the height h = 8ft

two triangles with the base b = 6ft and the height h = 9.5ft.

The formula of an area of a rectangle l × w:

A=lw

Substitute:

A_1=(12)(6)=72\ dt^2

The formula of an area of a triangle:

A=\dfrac{bh}{2}

Substitute:

A_2=\dfrac{(12)(8)}{2}=48\ ft^2

A_3=\dfrac{(6)(9.5)}{2}=28.5\ ft^2

The Surface Area:

S.A.=A_1+2A_2+2A_3

Substitute:

S.A.=72+2(48)+2(28.5)=225\ ft^2

5 0
3 years ago
Read 2 more answers
ABCD is a rhombus. Given only the choices below, which properties would you use to prove AEB ≅ DEC by SAS?
Nitella [24]
"<span>The diagonals bisect each other" is the one property among the following choices given in the question that you would </span><span>use to prove AEB ≅ DEC by SAS. The correct option among all the options that are given in the question is the second option. I hope that this is the answer that has actually come to your desired help.</span>
4 0
3 years ago
Tony is reseeding the front lawn. The lawn covers 2,500 square feet and grass seed is $15.98 for each 7-pound bag. Each pound of
Phantasy [73]

Answer:271.66$

Step-by-step explanation:

8 0
3 years ago
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