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3 years ago

10

Carly spends $5 for n notebooks.Write an algebraic expression represent the cost of one notebook

2 answers:

n200080 [17]3 years ago

8 0

Since she spent 5 dollars in total for all the notebooks then you would do
5 ÷ N

MakcuM [25]3 years ago

4 0

# of notebooks divided by $5
that is ur expression

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Use diagrams or the description of equivalent ratios to show thay 2:3,4:6, and 8:12 are equivalent

VikaD [51]

So
lets say we have
a/b=2a/2b
we know that if we invert one and multiply it by the other (divide them), we get 1 because a/a=1 where a=a

so
2/3 and 4/6 are equivelent because if you divide them we get 12/12=1

2/3 and 8/12 are equivilent because if you divide them we get 24/24=1

and sinde 2/3=4/6 and 2/3=8/12, 2/3=4/6=8/12

they are equivlent

6 0

2 years ago

Determine the number of possible triangles, ABC, that can be formed given angle A = 30°, a = 4, and b = 6.

Sophie [7]

Answer:

Step-by-step explanation:

Alright, lets get started.

using Sine Law,

$\frac{sinA}{a}=\frac{sinB}{b}$

$\frac{sin30}{4}=\frac{sinB}{6}$

$sinB=0.75$

$angle B = 48.6$

Another angle will be

$angle B' = 180-48.6 = 131.4$

considering angle B, angle C = $180 - (48.6+30)=101.4$

considering angle B', angle C' = $180-(131.4+30)=18.6$

$\frac{sinA}{a}=\frac{sinC}{c}$

$\frac{sin30}{4}=\frac{sin101.4}{c}$

$c = 7.84$

Similarly, finding c'

$\frac{sinA}{a}=\frac{sinC'}{c'}$

$\frac{sin30}{4}=\frac{sin18.6}{c'}$

$c'=2.55$

Hence two triangles are possible with below details: : Answer

A = 30, B = 48.6, C = 101.4, c = 7.84

A = 30, B' = 131.4, C' = 18.6, c' = 2.55

Hope it will help :)

5 0

2 years ago

Write an equation for slope of -2/3 and y-intercept of 5

goldenfox [79]

Answer:

y=-2/3x+5

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Please help <br><br><br> marking brainlist <br><br> the answer is not C

kenny6666 [7]

Answer:

it is most definitely d because that's where they intercept

8 0

2 years ago

Read 2 more answers

Given f(x) = 70 + 11x, find x when f(x) =158

Mumz [18]

Answer:

$\huge \boxed{x = 8}$

Step-by-step explanation:

f(x) = 70 + 11x

To find the value of x when f(x) =158 , equate f(x) to 158

We have

$70 + 11x = 158 \\ 11x = 158 - 70 \\ 11x = 88$

Divide both sides by 11

$\frac{11x}{11} = \frac{88}{11} \\$

We have the final answer as

<h3>x = 8</h3>

Hope this helps you

5 0

2 years ago