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KengaRu [80]
3 years ago
11

Negative three times a number is at least 57.

Mathematics
1 answer:
EastWind [94]3 years ago
7 0

Answer:

given a number x, negative 3 times that number is -3x. If this has to be at least 57, it means that -3x must be greater than or equal to 57:

-3\geq 57 Dividing both sides by -3 solves the equation, but we have to switch the inequality sign because we're dividing by a negative number:

x \leq  \frac{57}{3} =19

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NNADVOKAT [17]
Take another picture can’t see too good
4 0
3 years ago
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Chealsea has 7/8 pound of butter to make icing. Each batch if icing needs 1/4 pound of butter. Write and solve an equation that
Roman55 [17]

Answer:

Chelsea can make 3 \frac{1}{2} batches of icing with 7/8 pounds of butter.

Step-by-step explanation:

7/8 ÷ 1/4  (reciprocate 1/4 to replace division sign with multiplication sign)

= 7/8 x 4/1

= 28/8

= 7/2

= 3 \frac{1}{2}

This means that Chelsea can make 3 \frac{1}{2} batches of icing with 7/8 pounds of butter.

I hope this helps :)

7 0
3 years ago
A 200 kg sailboat experiences an unbalanced force of 895 N pushing it forward, what is the sailboat's acceleration?
tankabanditka [31]

Answer:

4.5m/s^2

Step-by-step explanation:

Given data

Mass= 200kg

Force= 895N

Required

the acceleration a

We know that

F=ma

a= F/m

substitute

a= 895/200

a= 4.5 m/s^2

Hence the accelaration is 4.5m/s^2

4 0
3 years ago
If u know that y=30 then what is y=4x-2
Marta_Voda [28]

Answer:

x = 8

Step-by-step explanation:

y = 4x - 2

30 = 4x - 2

+ 2        + 2

32 = 4x

/ 4     / 4

8 = x

4 0
3 years ago
Write the number in standard form 1.872x102
UkoKoshka [18]
1.872 would be 187.2 when times by 100.
we will round it to 1.9
3.8 is 2 times,
and to be honest,
1.872 * 2 is 3.744
190.944 would be your answer if you find something similar to this.
8 0
3 years ago
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