3 years ago

Solve the equation 7 + 3m = 28

Mathematics

1 answer:

balandron [24]3 years ago

7 0

The answer is D. M=7

===================
explanation

7+3(7)=28

7+21=28

28=28

making the D.M=7 as true.

You might be interested in

Find: 1. three quartiles and 2. interquartile range (IQR).<br> 1, 3, 9, 12, 12, 14, 18

Alex_Xolod [135]

Q1=3 Q2[median]=12 Q3=14 and the IQR is 11

3 0

3 years ago

How can you make 2 cups of chocolate milk a gallon?<br> I know that 32 = a gallon

const2013 [10]

Well you could use the equation 32=2x or 32=(2*x) but if you're looking for an answer that is other than turning this into an equation, then it would be impossible to find an answer. I hope this helped ^^

5 0

3 years ago

Select The correct Description giving brainliest PLZ HELP

Alika [10]

Answer: C

Step-by-step explanation:

6 0

2 years ago

Given: ∆PQR, m∠R = 90° m∠PQR = 75° M ∈ PR , MP = 18 m∠MQR = 60° Find: RQ

tensa zangetsu [6.8K]

Answer: RQ= 8.99 ( approx)

Step-by-step explanation:

Let MR= x

Since, In triangle, PRQ, tan 75°= $\frac{18+x}{RQ}$

⇒ RQ= $\frac{18+x}{tan 75^{\circ}}$

Now, In triangle MRQ,

tan 60°= $\frac{18+x}{RQ}$

⇒ RQ= $\frac{x}{tan 60^{\circ}}$

On equating both values of RQ,

$\frac{18+x}{tan 75^{\circ}}=\frac{x}{tan 60^{\circ}}$

⇒ $\frac{18+x}{x}=\frac{tan 75^{\circ}}{tan 60^{\circ}}$

⇒ $\frac{18+x}{x}=2.15470053838$

⇒ $18=2.15470053838x-x$

⇒ $x=15.5884572681$ ≈15.60

Thus RQ=8.99999999999≈8.99

6 0

3 years ago

Darryl wants to add enough water to 8 gallons of a 10% bleach solution to make a 5% bleach solution. Which equation can he use t

Margarita [4]

Answer:

2) 0.8/8+x=5/100

Step-by-step explanation:

4 0

2 years ago