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3 years ago

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What is an integer greater than -3 2/5 and less than -2.7?

1 answer:

Snezhnost [94]3 years ago

3 0

Integers are like -1,0,1,2,3,4....
-3 and 2/5 is -3.4
-2.7

between -3.4 and -2.7 is -3

integers is -3

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Solve these equations:<br> (a) x squared= 49<br> (b) x squared – 7 = 29<br> (c) 4x squared = 64

Lunna [17]

A.
$x^2=49 \\
\sqrt{x^2}=\sqrt{49} \\
|x|=7 \\
x=-7 \ \lor \ x=7 \\
\boxed{x=-7 \hbox{ or } x=7}$

b.
$x^2-7=29 \ \ \ |+7 \\
x^2=36 \\
\sqrt{x^2}=\sqrt{36} \\
|x|=6 \\
x=-6 \ \lor \ x=6 \\
\boxed{x=-6 \hbox{ or } x=6}$

c.
$4x^2=64 \ \ \ |\div 4 \\
x^2=16 \\
\sqrt{x^2}=\sqrt{16} \\
|x|=4 \\
x=-4 \ \lor \ x=4 \\
\boxed{x=-4 \hbox{ or } x=4}$

8 0

4 years ago

Read 2 more answers

Andre and Jillian were shopping at the same grocery store for bottles of sports drinks for their kickball teams. Andre bought 3

Leno4ka [110]

Answer:

x = 4

Step-by-step explanation:

The equation comes out to be:

3x + 11 = 5x + 3

Move the <u>variables</u> to the left-hand side and change its sign

And move the <u>constant</u> to the right-hand side and change its sign:

3x - 5x = 3 - 11

Combine like terms to get:

-2x = -8

Isolate x by dividing -2 on both sides:

-2x/-2 = -8/-2

x = 4

6 0

3 years ago

What is the multiplication property of equality of 3/4=a/12

Fittoniya [83]

A=9. I hope this is what you are looking for

5 0

3 years ago

Blakes goes from averaging 8 hours of sleep for a school night to averaging 6.5 hours of sleep on the weekend. What is the perce

beks73 [17]

Answer:

Step-by-step explanation:

So Blakes sleep 8 hours per night during the school day

8 hours/night...................................100%

6.5 hours/night...................................?

6.5*100/8=81.25

the change in percentage is 100-81.25=18.75%

the percentage change is 18.75

if it is easier for you, another method is:

8-6.5=1.5 subtract the original amount to the new amount

1.5/8=0.1875 divide by the original amount

0.1875*100=18.75 find the percentage

7 0

4 years ago

With three boys on a large scale, it read 170 pounds. When Adam stepped off, the scale read 100 pounds. When both Adam and Ben s

Elden [556K]

Answer:

Adam = 70 pounds

Ben = 40 pounds

C = 60 pounds

Step-by-step explanation:

We can work out some equations based on the given information:

We can call the boys A, B and C

so,

when all three boys are standing on the scale, it reads 170 pounds.

$A + B + C = 170$ - Eq(1)

when Adam stepped off, the scale reads 100. This means that the combined weight of the remaining two boys is 100.

$B + C = 100$ - Eq(2)

when both Adam and Ben stepped off, the weight of the remaining boy is shown on the scale.

$C = 60$

So we already knew the weight of boy C. (it was in the question all along)

$C = 60$ pounds

<u>Now to find the individual weights of the remaining boys, we can work our way backwards</u><u> </u>

we can put this value back in Eq(2), to find the weight of boy B.

$B + C = 100$

$B + 60 = 100$

$B = 100 - 60$

$B = 40$

the

the weight of boy B (Ben) is $B = 40$ pounds

now we can put all of the known weights of the boys in Eq(1) to find the weight of Boy A.

$A + B + C = 170$

$A + 40 + 60 = 170$

$A + 100 = 170$

$A = 170 - 100$

$A = 70$

the weight of boy A (Adam) is $A = 70$ pounds

The Answer:

Adam = 70 pounds

Ben = 40 pounds

C = 60 pounds

7 0

4 years ago