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Inessa05 [86]
2 years ago
12

The product of 7 ​, and a number increased by 8 ​, is 105. What is the​ number?

Mathematics
1 answer:
sertanlavr [38]2 years ago
8 0

Answer:

97

Step-by-step explanation:

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Use simultaneous equations to solve the following. Three kilograms of jam and two kilograms of butter cost $29 and six kilograms
artcher [175]

Answer:

The cost of 1kg jam is $7 and the cost of 1kg butter is $4

Step-by-step explanation:

Let jam = x

butter = y

3x + 2y = 29 -----(1)

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(1)×2 ->

6x + 4y = 58 -----(3)

(3)-(2) ->

y = 4

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Which linear inequality will not have a shared solution set with the graphed linear inequality?
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Simplify the ratio 24/56
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How to solve:
Step 1 :  Note down the given ratio from the questions.

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3 years ago
The region R enclosed between the graph of the function y=x^2−4x+5 and the x-axis for 0≤x≤4 is partitioned into four subinterval
Marina CMI [18]

Answer:

9.00 square units

Step-by-step explanation:

The width of the interval is 4 − 0 = 4.  Divided by 4 equal subintervals, the width of each subinterval is 4/4 = 1.

The subintervals are:

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MRAM is midpoint rectangular approximation method.  So we use the midpoints of each interval to find the height of the rectangle:

f(0.5) = (0.5)² − 4(0.5) + 5 = 3.25

f(1.5) = (1.5)² − 4(1.5) + 5 = 1.25

f(2.5) = (2.5)² − 4(2.5) + 5 = 1.25

f(3.5) = (3.5)² − 4(3.5) + 5 = 3.25

So the total approximate area is:

A = 3.25 + 1.25 + 1.25 + 3.25

A = 9.00

Graph: desmos.com/calculator/x8dcibqszo

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3 years ago
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Write a word problem with<br><br> x+2.5=127.5
notsponge [240]

Answer:

Daniel saved $127.50 for a guitar. His younger brother took $2.50 from him. How much money does he have left (x)? Solve for x.

Step-by-step explanation:

hope that helped :)

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3 years ago
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