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Crazy boy [7]
3 years ago
13

PLEASE HELP!!

Mathematics
1 answer:
kobusy [5.1K]3 years ago
5 0

Answer:

The average height of a 5-year-old boy is 98.9\ cm

Step-by-step explanation:

Let

x------> the ages of boys between 2 and 10 years old

y-----> the average heights in centimeters

we have

y=6.3x+67.4

so

For x=5 year-old-boy

substitute in the equation the value of x to find the value of y

y=6.3(5)+67.4=98.9\ cm

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What property is shown in the following equation?<br><br> 17 + 8 + 3 = 17 + 3 + 8
ss7ja [257]

Answer:

The Commutative Law of Addition.

Step-by-step explanation:

Basically, this law says we can swap numbers over and still get the same number when we add. This has demonstrated exactly that.

Hope this helped!

3 0
3 years ago
Read 2 more answers
1/2(2g-3)=-4(g+1) show work please do this ASAP
lozanna [386]
<span><span>1/2<span>(<span>2g−3</span>)</span></span>=<span>−<span>4<span>(g+1)</span></span></span></span>
<span><span>1/2<span>(<span>2g−3</span>)</span></span>=<span>−<span>4<span>(g+1)</span></span></span></span>
<span><span>g+<span>−3/2</span></span>=<span><span>−4g</span>−4</span></span>
<span><span><span>g+<span>−3/2</span></span>+4g</span>=<span><span><span>−4g</span>−4</span>+4g</span></span><span><span>5g+<span>−32</span></span>=−4</span>
5g+−3/2+3/2=−4+3/2
<span><span>
5g</span>=<span>−5/2</span></span>
<span><span>5g/5</span>=<span><span>−52</span>5</span></span><span>
g=<span>−1<span>2

Hoped I helped!</span></span></span>
6 0
3 years ago
Read 2 more answers
Timpony School District surveyed a random sample of 606060 middle school students about the amount of time they watch TV. Of the
scoundrel [369]

Choice A is the most reasonable estimate

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3 years ago
A salesman travelled 2/5 of his journey before lunch and 3/8 of his journey after lunch.
AysviL [449]
2/5+3/8= 31/40 therefore he still has 9/40 to go.
to get this you multiply the two denominators together
5x8=40 which is your denominator
then you cross multiply the two numerators
2x8=16
3x5=15
to get the final
15/40+16/40=31/40
and you are left with 9/40
7 0
4 years ago
The list price of a diamond ring is $662. The jeweler is offering a chain discount of 15% less 10%. What is the final net price
Mnenie [13.5K]
672 dollars is the net price because 15 percent off of 10 percent of 662 dollars is about 10 dollars and 10 + 662 is 672
6 0
4 years ago
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