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2 years ago

Solve for b. 4b-3b+7= 10

Mathematics

2 answers:

Morgarella [4.7K]2 years ago

7 0

b = 3

Step-by-step explanation:

$4b - 3b + 7 = 10$

Add similar terms :

$4b - 3b = b \\ b + 7 = 10$

Collect like terms and simplify

$b = 10 - 7 \\ b = 3$

frozen [14]2 years ago

6 0

Answer:

b=3 if i did it correctly. i apologize if it's wrong.

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Step-by-step explanation:

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3 years ago

Emma is standing 10 feet away from the base of a tree and tries to measure the angle of elevation to the top. She is unable to g

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The complete question in the attached figure

step 1
find the tree height for an angle of elevation of 55°
tan 55°=opposite side angle 55°/adjacent side angle 55°
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so
tan 55°=h/10-------> h=10*tan 55°-----> h=14.28 ft

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tan 75°=h2/10-------> h2=10*tan 75°-----> h2=37.32 ft

therefore

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Part 1) 4.2 ft

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Part 2) 14.7 ft

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Part 3) 24.4 ft

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Part 4) 33.9 ft

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3 years ago

At a carnival, food tickets cost $2 each and ride tickets cost $3 each. A total of $1,240 was collected at the carnival. The num

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Answer:

Step-by-step explanation:

The given equations satisfy the given conditions. There are 2 equations and 2 unknowns, so a certain solution can be found.

This can be solved using substitution,

Substituting eqn 2 to eqn 1:

2(2y – 10) + 3y =1240

Simplifying,

y = 180

x = 350

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3 years ago

Need help on this please

Akimi4 [234]

Question 10
30-2=28

28*2= 56
56*2= 112
120*2= 240

240+112=352.

Area = 352 square feet
Question 11
Volume = pi*r*r*h
=3.142*2.5*2.5*0.5
= 9.817
From the choices the answer is
D. 9.8 cubic ft

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3 years ago

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Answer:

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Step-by-step explanation:

We are required to determine the solution set of the inequality

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