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djverab [1.8K]
2 years ago
14

I need help on this math problem

Mathematics
1 answer:
Alex Ar [27]2 years ago
8 0

Answer:

Natalie pays $9 every week.

d = 9w + 72

Step-by-step explanation:

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Yeah so help please.
irina [24]

Answer:

could you possibly zoom in

Step-by-step explanation:

7 0
3 years ago
A)250cm =______ mm.<br>b)5000m = ____ km. <br>c) 200km =______cm.​
Liono4ka [1.6K]

Answer:

a = 2500mm

b = 5km

c = 2e+7

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Show your work for this one
Klio2033 [76]

Step-by-step explanation:

multipy the two sides by 2

n+4= -16

move the constant to the right change its sign

n= -16 - 4

calculate the difference

N= - 20

4 0
3 years ago
Read 2 more answers
There are two numbers. The first number minus the second number is 15. One-third of the sum of the numbers is one quarter of the
disa [49]

Answer:

So the numbers are 12 and -3.

Step-by-step explanation:

In order to solve this problem we will attribute variables to the numbers, the first one will be "x" and the second one will be "y". From the first sentence we know that the subtraction of the two numbers is equal to 15, so we have:

x - y = 15

Then the problem states that one-third of the sum of the number is equal to one quarter of the first number, so we have:

(1/3)*(x+y) = x/4

Since we now have two equations and two variables we can solve for x and y. From the first equation we have:

y = x - 15

Using this expression for the value of y in the second equation:

(1/3)*(x + x - 15) = x/4

(1/3)*(2*x - 15) = x/4

2*x - 15 = 3*x/4

2*x - 3*x/4 = 15

(8*x - 3*x)/4 = 15

5*x/4 = 15

5*x = 60

x = 60/5 = 12

y = x - 15 = 12 - 15 = -3

So the numbers are 12 and -3.

4 0
3 years ago
Read 2 more answers
Triangle DEF contains right angle E. If angle D measures 40° and its adjacent side measures 7.6 units, what is the measure of si
ki77a [65]

\\ \rm\longmapsto cot40=\dfrac{7.6}{EF}

\\ \rm\longmapsto EF=\dfrac{7.6}{cot40}

\\ \rm\longmapsto EF=\dfrac{7.6}{1.1}

\\ \rm\longmapsto EF=6.909units

\\ \rm\longmapstoEF=6.91units

3 0
2 years ago
Read 2 more answers
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