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brilliants [131]
2 years ago
13

30 exceeds three times a number by 89 what is the number

Mathematics
1 answer:
Lyrx [107]2 years ago
8 0

Answer:

19.66

Step-by-step explanation:

Let x represent our unknown number

Okay so it's basically saying that 30 is greater than 3x by 89

We would represent that mathematically by:

30 - 89 = 3x

So then we just solve this like we usually would

30 - 89 = -59

-59 \div 3 = 19.666. . .

Hope this helps:)

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A waitress earned $7 per hour at her job plus an additional $50 in tips on Friday. She earned more than $99 total. Which inequal
aivan3 [116]

Answer:

Step-by-step explanation:

7h + 50= 99

99-50 =49

7h=49

49/7

h=7

here's the steps i don't know which part you need

5 0
3 years ago
Please do at least two whole screenshots. Thx, I'm going to spam this now.
Ket [755]

Answer:

Step-by-step explanation:

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3 years ago
You begin a hike in Death Valley, California, at an elevation of -86 meters. You hike to a point of elevation at 45 meters. What
kotegsom [21]

Answer:

131

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7 0
3 years ago
3. Solve the equation using square roots. If the equation has no real solution, write
noname [10]
3) x² - 121 = 0

x² = 121

x' = +√121

x' = 11

_______________

x'' = - √121

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4) 4x² + 144 = 0

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x² = -36

x = √-36

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5) z²+10z+21 = 0

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Solution ⇒ S{ -7 ; -3} or (x+3)(x+7)
4 0
3 years ago
Find n(A) for the following set. <br> A={a,b,c,...,z}
MariettaO [177]

n(A) = 26

Solution:

Let us first define the cardinal number of the set.

Cardinal number of the set:

The number of distinct elements in a finite set is called its cardinal number. It is denoted as n(A).

Given set: A = {a, b, c, .... z}

We know that, there are 26 elements in the alphabet "a to z".

Number of elements in the set A = 26

Hence n(A) = 26.

5 0
3 years ago
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