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1 year ago

The sum of 4 times a number and 9 is equal to 8. Use the variable b for the unknown number.

Mathematics

2 answers:

Alexxandr [17]1 year ago

8 0

Answers
4b+9=8
This is the required statement

romanna [79]1 year ago

7 0

Let the number be b

ATQ,

The sum of 4 times a number and 9 is equal to 8.

Sum means addition
Times means multiplication

$\boxed{ \tt \: 4b + 9 = 8}$

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Step-by-step explanation:

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3 years ago

G(t) = −3t^3 − 4t f (t) = 4t − 4 Find g(t) + f (t)

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Step-by-step explanation:

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2 years ago

Write g(x) = 4x2 + 88x in vertex form. The function written in vertex form is g(x) = (x +11)2 + .

romanna [79]

Answer:

y = 4(x + 11)² - 484

Step-by-step explanation:

y = 4x² + 88x

factor the expression

y = 4(x² + 22x)

complete the square

y + ? = 4(x² + 22x + ?)

y + ? = 4(x² + 22x + 121)

add 4 • 121 to the left side

y + 4 • 121 = 4(x² + 22x + 121)

multiply

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subtract both sides by 484

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3 years ago

Read 2 more answers

2) Brian purchased pens for 75 cents each and pencils for 40 cents each he bought total of 22 writing utensils for $11.95. How m

d1i1m1o1n [39]

Answer:

13 pencils.

Step-by-step explanation:

Let x be the pens and y be the pencils

Given:

Brian purchased pens for 75 cents each and pencils for 40 cents each he bought total of 22 writing utensils for $11.95.

Total pens and pencils is 22

So, $x+y=22$ ----------------(1)

And he bought all utensils for $11.95. and each pen for 75 cents and pencils for 40 cents.

$0.75x+0.40y=11.95$ ------------(2)

solve equation 1 and equation 2 for x and y.

From equation 1.

$x+y=22$

$y=22-x$ ----------------(3)

put y value in equation 2.

$0.75x+0.4(22-x)=11.95$

$0.75x+0.4\times 22-0.4x=11.95$

$0.75x+8.8-0.4x=11.95$

$0.75x-0.4x=11.95-8.8$

$0.35x=3.15$

$x=\frac{3.15}{0.35}$

$x=9$

Now substitute x value in equation 3.

$y=22-9$

$y=13$

So, he buy 13 pencils.

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2 years ago

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Nimfa-mama [501]

Answer:

Step-by-step explanation:

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2 years ago