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Elis [28]
2 years ago
7

McKenna needs to build a window frame. She needs 2 pieces of lumber that are 4 34 feet long and 2 more that are 3% feet long. Ho

w much lumber does McKenna need in all?
​
Mathematics
1 answer:
otez555 [7]2 years ago
6 0

Answer:

15.5 feets of lumber

Step-by-step explanation:

To build a window frame :

Length of lumber needed = 4 3/4 feets and 3 feets

Number of 4 3/4 feets lumber needed = 2

Number of 3 feets lumber needed = 2

Total required lumber :

(2 * 4 3/4)feets + (2 * 3) feets

(2 * 19/4) feets + 6 feets

9.5 feets + 6 feets

= 15.5 feets

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Sally invests £8000 in a savings account.
lisabon 2012 [21]

Answer:

£8934.24

Step-by-step explanation:

100 + 2.8 = 102.8

102.8 / 100 = 1.028

8000 x 1.028^{4} = £8934.24

3 0
2 years ago
Which statement is true about the expression 4(9+6)?
olga55 [171]
The thing true about that is that we can use the distributive property to simplify it. 

4(9+6) = 4*9 + 4*6 = 36 + 24 = 60

5 0
3 years ago
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last saturday i went to a book store and bought the following items on pocket notebook which cost 23.75; a set of colored pens w
Iteru [2.4K]

Answer:

The amount of change she received is

$16.1

Step-by-step explanation:

1.what is asked in the problem?

We are to find how much change she received

what are the given facts?

She bought:

notebook which cost 23.75; a set of colored pens which cost 36.20 and a liquid eraser which cost 23.95

She gave the cashier $100

2.what operation to be used to solve the problem ?

Addition and Subtraction operation

3.solve

= $100 - ($23.75 + $36.20 + $23.95)

= $100 - $83.9

= $16.1

The amount of change she received is

$16.1

5 0
3 years ago
Witch has a greater absolute value 33 dollars and -52 dollars
lakkis [162]

Answer:

-52

Step-by-step explanation:

the absolute value is always positive and so 33 would remain 33, but -52 would change to 52 which is greater than 33.

6 0
3 years ago
Read 2 more answers
How do you solve this?
k0ka [10]
x^2-3x-4=0\\\\x^2-2x\cdot\frac{3}{2}=4\ \ \ /+(\frac{3}{2})^2\\\\x^2-2x\cdot\frac{3}{2}+(\frac{3}{2})^2=4+(\frac{3}{2})^2\\\\(x-\frac{3}{2})^2=4+\frac{9}{4}\\\\(x-\frac{3}{2})^2=\frac{16}{4}+\frac{9}{4}\\\\(x-\frac{3}{2})^2=\frac{25}{4}\\\\x-\frac{3}{2}=\pm\sqrt\frac{25}{4}

x-\frac{3}{2}=\pm\frac{\sqrt{25}}{\sqrt4}\\\\x-\frac{3}{2}=\pm\frac{5}{2}\\\\x-\frac{3}{2}=-\frac{5}{2}\ or\ x-\frac{3}{2}=\frac{5}{2}\\\\x=-\frac{5}{2}+\frac{3}{2}\ or\ x=\frac{5}{2}+\frac{3}{2}\\\\x=-\frac{2}{2}\ or\ x=\frac{8}{2}\\\\x=-1\ or\ x=4
5 0
3 years ago
Read 2 more answers
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