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Oxana [17]
3 years ago
10

Solve the algebraic expressions n+8 if n= 15

Mathematics
2 answers:
crimeas [40]3 years ago
4 0
Plug in n into expression
15+8=23
Andre45 [30]3 years ago
3 0

Just substitute 15 to then then that will be 15+8=23

SO THE ANSWER IS 23

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A famous monument is 300 ft tall. When it casts​ 210-ft shadow, a nearby tree casts a shadow that is 27 ft long. About how tall
Nataliya [291]

Answer:

38.57 feets

Step-by-step explanation:

Given that:

Height of monument, h = 300ft

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Shadow of tree, s = 27ft

Height of tree, = x

Using the relation :

Height / shadow = height / shadow

Monument = tree

300 / 210 = h / 27

Cross multiply

300 * 27 = 210 * h

8100 = 210h

h = 8100 / 210

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3 0
3 years ago
A recipe calls for 1/8 teaspoon of vanilla extract if the recipe is doubled how much vanilla extract is needed
LUCKY_DIMON [66]

Answer:

2/8

Step-by-step explanation:

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3 years ago
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FrozenT [24]

Answer:

Part a) y=70x

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Step-by-step explanation:

Let

x------> the time in minutes

y-----> the total numbers of words

step 1

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<u>Find the slope of the linear equation</u>

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substitute

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y=70x-70+70

y=70x ----> This is a linear direct variation

Part b) For x=49\ min

substitute the value of x in the linear equation to find the value of y

y=70(49)=3,430\ words

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