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Lapatulllka [165]
3 years ago
7

Please explain how to do this I don’t get it!

Mathematics
2 answers:
scoray [572]3 years ago
4 0
She has $20 she can use so the limit of money is 20. 7*2.50=17.5 and 4*.50=2 is she’d be using $19.50 she has 0.50 left so you would divide 0.50 by 0.12 which is 4.16 so she could get 4 pencils.
Ne4ueva [31]3 years ago
3 0
Do 7 •2.50 and do 4•.50 Add those values together. Subtract that value from the $20. Then divide what you have left by .12
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^^ question above! Thanks!
Aleksandr [31]
You can cross multiply and the answer would be 100/9
9/10=10/k
100=9k
k=100/9
7 0
3 years ago
Slove for y show all your work 12y + 4 = 8y-12​
Vedmedyk [2.9K]

Answer:

y = -4

Step-by-step explanation:

12y + 4 = 8y-12​

Subtract 8y from each side

12y - 8y +4 = -12

4y +4 = -12

Subtract 4 from each side

4y +4-4 = -12 -4

4y = -16

Divide by 4

4y/4 = -16/4

y = -4

8 0
3 years ago
Read 2 more answers
Evaluate the given expression if w = 6 and z = -3.
LenaWriter [7]
The answer will be 75
-3*-3*-3*-3=81
Z^4-w
81-6=75
5 0
3 years ago
Read 2 more answers
X-y=5 and x+y=-10 is this parallel, perpendicular, or neither?
tiny-mole [99]

Answer:

Its perpendicular

Step-by-step explanation:

You can solve the equation to get x=-2.5 and y = -7.5 so they intersect there, but they intersect at 90 degrees so its perpendicular.

3 0
3 years ago
Ryan called each school in the district to determine wether or not they have a recycling program. What is true about Ryan’s data
otez555 [7]

Ryan's data collection is true that Ryan did a survey  he asked about qualitative data.

Given that Ryan called every school in the district to find out if they had a recycling program.

We know that there are two types of data:

Quantitative data deals with numbers and things that we can count or measure such as dimensions such as height, width, and length.

Qualitative data relating to characteristics and descriptions cannot be counted or measured, but are observable by their qualities such as smell, taste, and color.

If we ask for quantitative data, the survey will be quantitative. Data recycling means the quality of the data available.

They can ask for a yes or no answer, as in the Ryan investigation.

Hence, the correct statement about Ryan's data collection is: Ryan conducted a survey in which he asked about qualitative data.

Learn more about qualitative data from here brainly.com/question/27076284

#SPJ1

8 0
2 years ago
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