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ira [324]
3 years ago
15

A teacher purchased a total of 460 notebooks and pencils. Each notebook cost $1.75 and each pencil cost $0.05. If the teacher sp

ent a total of $218.50, how many notebooks did the teacher purchase?
Mathematics
1 answer:
pav-90 [236]3 years ago
8 0
The teacher purchased 115 notebooks
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The graph of f(x) was vertically translated down by a value of k to get the function g(x) = 5x + k. What is the value of k? A -7
Nadya [2.5K]

Answer:

{\boxed{\text{A. }\math{k = -7}}

Step-by-step explanation:

The general rule for vertical translation of a function ƒ(x) ⟶ ƒ(x) + k .

A positive value of k means that the graph is shifted up by k units.

The graph of ƒ(x) was shifted from (0, 1) to (0, -6).

\text{The graph was shifted down by seven units, so }{\boxed{\mathbf{k = -7}}

4 0
3 years ago
Read 2 more answers
1.) What is the slope of the line perpendicular to a line with the slope of<br> 2/3?
daser333 [38]

Answer:

-3/2

Explanation:

Slopes of perpendicular lines are opposite reciprocals, which means you flip them and switch them from positive to negative, or the other way around.

8 0
3 years ago
Which of these is the absolute value parent function?
kotykmax [81]

Answer:

Option d. is correct answer.

Step-by-step explanation:

<em>f(x) = [x]</em><em> </em>is the absolute value parent function.

7 0
3 years ago
Okay I know I suck at math and I really don't understand math that well so can you help me on this??? Thank you!
Alja [10]
W - width
l - length
p - perimeter

The perimeter is 72 cm (p=72).
The length is twice the width (l=2w).
The formula for perimeter is 2w+2l=P.

p=72 \\&#10;l=2w \\ \\&#10;2w+2l=p \\&#10;2w+2 \cdot 2w=72 \\&#10;2w+4w=72 \\&#10;6w=72 \\&#10;w=12 \\ \\&#10;l=2w=2 \cdot 12 =24

Check the answer:
2 \cdot 12 + 2 \cdot 24 \stackrel{?}{=} 72 \\&#10;24+48 \stackrel{?}{=} 72 \\&#10;72 \stackrel{?}{=} 72 \\ \hbox{true}

The length of the photo is 24 cm, the width of the photo is 12 cm.
8 0
3 years ago
What is -5.8+(-2.5)
Scilla [17]

-5.8 + (-2.5) = -8.3

since both the number are negative you simply add the numbers and use the negative sign.

5 0
3 years ago
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