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grin007 [14]
3 years ago
7

Can you please explain to me how I would solve this problem? Can you please explain/and show all the steps?

Mathematics
1 answer:
Lena [83]3 years ago
7 0
22 = z + (-9) Switch the sides
z = 22 - (-9) Solve
z = 31 So, z = 31
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Mr. Vander Heydens tie costs 3 times as much as Mr bentelys tie. Together they spent $128. What what the price of each of their
Artyom0805 [142]
128 / 4 =32

Mr Bentleys tie is $32
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Lee reads for 3/4 hour in the morning and 2/4 hour in the afternoon. how much longer does lee read in the morning than in the af
olganol [36]
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The ratio of two number is 4:7 and their hcf is 6 .find their lcm​
Alona [7]

168

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3 0
3 years ago
Find the slope of a line perpendicular to 2x-y-16
Alekssandra [29.7K]

put the equation 2x - y = 16 in the form of y = mx + c

2x - y = 16

2x = 16 + y

y = 2x - 16

the slope of this line is 2. the slope of a line perpendicular to it would be the negative reciprocal of 2. in other words, it would multiply with 2 to give -1.

you can form this equation with that info

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OR

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6 0
3 years ago
Natalie earned $200 in interest and 30 months with a beginning balance of $1040. What was her interest rate?
rjkz [21]

The interest rate is 7.69%

Step-by-step explanation:

Given

Interest = $200

Time = t = 30 months

Time will be converted into years as the rate is applied yearly

So,

1 year = 12 months

30 months = 30/12 years = 2.5 years

Principal amount  = $1040

The formula for interest is:

I  = P*r*t

Putting the values

200 = 1040 * r * 2.5\\200 = 2600r\\r = \frac{200}{2600}\\r = 0.076923

Converting into percentage:

r = 7.6923

Rounding off to nearest hundredth

r = 7.69%

Hence,

The interest rate is 7.69%

Keywords: Interest, percentage

Learn more about interest at:

  • brainly.com/question/899976
  • brainly.com/question/884169

#LearnwithBrainly

5 0
3 years ago
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