All categories

3 years ago

Solve for b. 13/b = 8/1 A. b=1.25 B. b=1.26 C. b=16.25 D. b=1.625

Mathematics

1 answer:

Sati [7]3 years ago

6 0

Answer: $b=13/8$

Cross multiply

$(13)*(1)=8*b\\13=8b$

Flip the equation

$8b=13$

Divide both sides by 8

$8b/8=13/8\\b=13/8$

You might be interested in

I need help with this and the first person who can answer this correctly gets a BRANLIST

Vesna [10]

Answer:

your answer is

A

6 0

3 years ago

Read 2 more answers

5 more than b divided by 2 is 5

gayaneshka [121]

We have an equation: (5+b)/2= 5
⇒ 5+b= 5*2
⇒ 5+b= 10
⇒ b= 10-5
⇒ b= 5

Final answer: b=5~

3 0

3 years ago

URGENT ANSWER NOW In △ABC, A=59∘, a=20, and c=21. What are the two possible values for angle C to the nearest tenth of a degree?

PilotLPTM [1.2K]

Answer:

The two possible values of C are 64.2° and 115.8°

Step-by-step explanation:

* In ΔABC

- a, b, c are the lengths of its 3 sides, where

# a is opposite to angle A

# b is opposite to angle B

# c is opposite to angle C

- m∠A = 59°

- a = 20

- c = 21

* To find the distance m∠C we can use the sin Rule

- In any triangle the ratio between the length of each side

to the measure of each opposite angle are equal

- c/sinC = a/sinA = b/sinB

* Lets use it to find the m∠C

∵ 21/sinC = 20/sin(59)

∴ sin(C) = 21 × sin(59) ÷ 20 = 0.9000256657

∴ m∠C = sin^-1(0.9000256657) = 64.16144°

∴ m∠C = 64.2°

∵ The value of sin(C) is positive

∴ Angle C may be in the first quadrant (acute angle)

or in the second quadrant (obtuse angle)

∴ The other measure of ∠C = 180 - 64.2 = 115.8

* The two possible values of C are 64.2° and 115.8°

6 0

2 years ago

Jess make a big kettle of rice and beans.He used 1 1/2 cup of beans he used 4 cups times as much rice how many cup of rice did J

ira [324]

6 cups 1.5 times 4 is 6

5 0

3 years ago

Read 2 more answers

1 over 4a = 2 over 3. Which of the following equals a in this equation?

dlinn [17]

Answer:

3/8

Step-by-step explanation:

The equation is given as:

$1/4*a=2/3$

We can simply the equation by getting rid of the denominators which is 4a and 3. Therefore we can multiply both sides with 3*4*a:

$(1/4*a)3*4*a=(2/3)*3*4*a$

On the left hand side 4a cancels with 4a and on the right hand side 3 cancels with 3. We are left with:

$3=2*4*a$

∴ After simplying

$a=3/8$

4 0

3 years ago