3 years ago

Which pair of expressions is equivalent?

Mathematics

1 answer:

Diano4ka-milaya [45]3 years ago

3 0

Answer:

Step-by-step explanation:

7(1–k)

= 1(7) -k(7) -------------> distributive property

= 7–7k

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which of the following are the dimensins of a rectangle that has a perimeter of 148 and an area of 144

atroni [7]

The dimensions are 72x2
Because $72*2=144$ & $72+72+2+2=148$
Your'e Welcome!!
Hopefully this is Brainliest worthy!!

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4 years ago

In how many different ways can you make exactly $0.75 using only nickels, dimes, and quarters, if you must have at least one of

weqwewe [10]

Answer:18

Step-by-step explanation:

6 0

3 years ago

There are 975 birds in an aviary. Each month, the number of birds decreases by 7%. There are 350 trees in the aviary. Each month

Vesna [10]

Part A
975 x 7%^m
350 - 7m
Part B
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5 0

4 years ago

Dr. Irvine saw 130 patients in one week. The ratio of kids to adults that he saw is 3 to 7. If k represents the number of kids a

Vitek1552 [10]

Answer:

The correct answer is

C. k+d=130

7k = 3d

Number of kids Dr. Irvine see in a week is 39.

Step-by-step explanation:

1. Let's review the information given to answer the question correctly:

Number of patients Dr. Irvine see in a week = 130

Radio of kids to adults = 3:7 or 3/7

Number of Kids = k

Number of adults = d

2. Let's find the equations system that should be set up to find out how many kids Dr. Irvine see

k + d = 130 (Number of patients Dr. Irvine see in a week)

Including the ratio:

7k = 3d

Replacing d:

d = 130 - k

Now substituting:

7k = 3 * (130 - k)

7k = 390 - 3k

10k = 390

k = 390/10

k = 39

3 0

3 years ago

What does the equation -9+|m-8|<0 equal to?

UNO [17]

The equation $-9+|m-8|$ equals to $-1 < m < 17$

Step-by-step explanation:

We need to solve the equation:

$-9+|m-8|$

Solving:

Adding 9 on both sides

$-9+9+|m-8|$

Applying absolute rule: |u| < a and a > 0 then, -a < u < a

So, $-9 < m-8 < 9$

Now we have,

m-8>-9 and m-8 <9

m>-9+8 and m <9+8

m>-1 and m<17

Combining the intervals:

-1 < m < 17

So the equation $-9+|m-8|$ equals to $-1 < m < 17$

Keywords: Inequality, Absolute rule

Learn more about inequality at:

#learnwithBrainly

7 0

3 years ago