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scZoUnD [109]
3 years ago
11

Mary is an years old. What expression represents her age 7 years from now? Two years ago?

Mathematics
1 answer:
Rudiy273 years ago
7 0

Answer

What expression represents her age 7 years from now?

y =x+7x

Two years ago?

z=y-2x

Step-by-step explanation:

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Please give answer asap
Drupady [299]

Answer:

9 < √88 < 10

Second one

Step-by-step explanation:

√81 = 9

√100 = 10

√88 is between √81 and √100

so

√81 < √88  < √100

or

9 < √88 < 10

8 0
3 years ago
Read 2 more answers
Expression: (5−2)2+23×4 Step 1: (3)2+23×4 Step 2: 9+23×4 Step 3: 9+9×4 Step 4: 9+36 Step 5: 45 Emily made a mistake. Which step
Levart [38]

Answer:

Step 3

Step-by-step explanation:

Given

(5 - 2)^ 2 + 23 * 4

Required:

Determine the first step where she made mistake

Her Step 1:

(3)^ 2 + 23 * 4 --- This is correct because she solved the bracket first

Her Step 2:

9 + 23 * 4 --- This is correct because she solved 3^2 as 9

Her Step 3:

9 + 9 * 4 --- This is incorrect because 23 * 4 is not equivalent to 9 * 4

Hence, her first mistake is in step 3.

The correct expression would have been

9 + 92

Then

= 101

6 0
3 years ago
Max is spending the afternoon at the ice rink with friends. it costs $7.00 to rent skates for a day, and $4.00 for each hour of
Simora [160]

Answer:

20 greater than or equal to 4x + 7

Step-by-step explanation:

hope this helps!

4 0
2 years ago
5,3,-7,-8,-2 order from greatest to least
Burka [1]

Answer

-8, -7, -2, 3, 5

Explanation

Positive numbers go up as they increase.

Negative numbers go up as they decrease.

3 0
2 years ago
Solve for X <br> PLEASE HELP ITS URGENT
almond37 [142]
With pythagorean theorem and working backwards, you do 8100-1225 to get 6875, you then get the square root of that to get x=82.91 or rounded to 82.92
6 0
3 years ago
Read 2 more answers
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