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3 years ago

Write an inequality to compare -21 and -13. which temperature is warmer?

Mathematics

1 answer:

Elena L [17]3 years ago

4 0

Answer:i think it is -21<13 and -13 is warmer

Step-by-step explanation:

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**NEED HELP???!!! ****

Nezavi [6.7K]

210/20=10.5 per hour
So
2000/10.5=190 hours

3 0

2 years ago

Is the value of the fraction 7−2y/6 greater than the value of the fraction 3y−7/12 ?

Sveta_85 [38]

Complete Question:

Is the value of the fraction 7−2y/6 greater than the value of the fraction 3y−7/12 ? For what values?(Make sure to use an inequality)

Answer:

y < 3

Step-by-step explanation:

The given two fractions are:

$\frac{7-2y}{6}$ and $\frac{3y-7}{12}$

We have to tell for which range of values is the value of first fraction larger than the second fraction. This can be done by setting up an inequality as shown:

$\frac{7-2y}{6} >\frac{3y-7}{12}$

The range of y which will satisfy this inequality will result in first fraction of larger value as compared to the second fraction.

Multiplying both sides of inequality by 12, we get:

$12 \times \frac{7-2y}{6} > 12 \times \frac{3y-7}{12} \\\\ 2(7-2y)>3y-7\\\\ 14-4y>3y-7\\\\ 14+7>3y+4y\\\\ 21>7y\\\\ 3>y\\\\ y$

This means, for y lesser than 3, the value of first fraction is larger than the second one.

3 0

2 years ago

Algebra 1- x-2y=1 find for y

timofeeve [1]

Answer: I got x= -2y

1- x-2y=1

Cancel 1 on both sides.

−x−2y=0

Add 2y to both sides.

−x=2y

Multiply both sides by -1.

x=−2y

there if that helps :)

5 0

3 years ago

A 15 | tall adult giraffe standing next to a ladder casts a 5 ft shadow. If the ladder is 12 ft tall, then how long is its shado

natima [27]

Answer:

Step-by-step explanation: bjffngjkldsldgns

3 0

2 years ago

A car is merging onto a freeway (beginning at rest), accelerating at a constant rate of 10ft/sec2. How long does it take to reac

masha68 [24]

Answer:

<h2>10.3seconds</h2>

Step-by-step explanation:

Step one:

given data

acceleration,a= 10ft/sec^2

final velocity v= 70mph

first, let is convert mph to ft/sec

1mph is 1.46667 ft/sec

70 mph is x

cross multiply we have

x= 102.7ft/s

Step two:

we are using the first equation of motion

v=u+at

initial velocity u= 0m/s

102.7=0+10*t

102.7=10t

divide both sides by 10

t=10.3seconds

5 0

2 years ago