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Mama L [17]
2 years ago
9

Greg is recording the changes in his bank account balance. In the morning, he records a deposit of $7. In the afternoon, he reco

rds a purchase of
$8
Create two expressions that each represent the total change in Greg's bank account balance after his deposit and purchase. Move numbers
to the lines to create the expressions.



Expression a: _-_
Expression b: _-_
Choices -8, -7, 7, 8
Mathematics
1 answer:
mel-nik [20]2 years ago
4 0

Answer:

Step-by-step explanation:

i think that it is either -7 - -8 or -7 + 8 or -7+-8.

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8.) In a carnival game, you gain $2 if you win and lose $1 if you do not win. If
RideAnS [48]

Answer:

Step-by-step explanation:

Somebody plays 30 times

L+W = 30, where L and W are number of losses and wins, respectively.

L = 30-W

Net after 30 plays is $6

2W - 1L = 6

2W - (30-W) = 6

3W = 36

W = 12

W = 18

17 wins

3 0
3 years ago
A contractor has been hired to install flooring for a bandstand in the shape of a circle that is 21 feet across. How many square
SOVA2 [1]

Answer:

A. 346.19 square feet.

Step-by-step explanation:

We have been given that a contractor has been hired to install flooring for a bandstand in the shape of a circle that is 21 feet across.

To find the square feet of flooring required, we will find area of circle.

Since the length across the circle is 21 feet, so radius of circle will be half of 21 feet.

\text{Radius}=\frac{\text{21 feet}}{2}

\text{Radius}=\text{10.5 feet}

\text{Area of circle}=\pi r^2

\text{Area of circle}=\pi (\text{10.5 feet})^2

\text{Area of circle}=3.14*110.25\text{ feet}^2

\text{Area of circle}=346.185\text{ feet}^2

\text{Area of circle}\approx 346.19\text{ feet}^2

Therefore, 346.19 square feet of flooring will be required.

3 0
3 years ago
Read 2 more answers
Give the least common multiple: 3a, 15 _____
stiks02 [169]

Answer:

Answer: LCM of 3 and 15 is 15. 2.

Step-by-step explanation:

Hope this helps

4 0
3 years ago
Read 2 more answers
Prove the polynomial identity (a-1)^3 + (a-1)^2 = a(a-1)^2
Sav [38]

Answer:

uhh

Step-by-step explanation:

Sorry but ain't nobody got time for this confusing stuff lol. Sorry I wasn't graced with math skills! Wish I could've helped!

7 0
3 years ago
Read 2 more answers
Pls help me ............
Alex73 [517]

Answer:

7

Step-by-step explanation:

2v ÷ e + 3

we want to find the value of the expression when v = 10 and e = 5

to do so we substitute the values into the expression

2v ÷ e + 3

==> substitute 10 for v and 5 for e

2(10) ÷ 5 + 3

We now evaluate using bpemdas

==> multiply 2 and 10

20 ÷ 5 + 3

==> divide 20 by 5

4 + 3

==> add 4 and 3

= 7

6 0
2 years ago
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