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Rufina [12.5K]
3 years ago
14

Help plsss i may fail lol

Mathematics
1 answer:
Inga [223]3 years ago
7 0

Answer:

Step-by-step explanation:

the first question is the first and the fourth one. it might be the third one too but i cant tell if thats a mutiplication sign.

the perimeter is 48

Im pretty sure the next one is 36

3+n, n+3

juan has 14 marbles

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Tell whether the angles are complementary or supplementary. Then fir<br> the value of x.
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Step-by-step explanation:

4. 10x + 30 = 90

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5. 4x + 40 + 3x = 180

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2 years ago
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2 years ago
Two planes that are traveling toward each other are 720 miles apart. One plane is traveling 40 miles per hour faster than the ot
natali 33 [55]

Answer:

y = 460 miles per hr

x = 500 miles per hr

Step-by-step explanation:

Let the planes be X any

Let their speeds be xmiles/hr and ymiles/hr respectively

x = y + 40 (assuming X is faster by 40miles/hr)

Distance travelled by X to meet Y = 0.75x

Distance travelled by Y to meet X = 0.75y

0.75x + 0.75y = 720 --------1

Put x = y + 40 in eqn 1

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7 0
3 years ago
translate this sentence into an inequality. A cheetah can reach a speed of 70 mph. however, this speed can be maintained for no
Gre4nikov [31]
<h2>Hello!</h2>

The answer is:

B. d\leq 1,640ft

<h2>Why?</h2>

From the statement we know that the cheetah can reach a speed of 70 mph, but it can be maintained for no more than 1,640 feet.

The expression "no more than" means that at least it can be reached but never exceeded, it involves that the distance can be less or equal than 1,640 feet but never more than that.

So, the correct option is:

B. d\leq 1,640ft

Have a nice day!

7 0
3 years ago
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