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Rus_ich [418]
2 years ago
14

I think it is a and c, but I would feel better if I had confirmation lol

Mathematics
2 answers:
mars1129 [50]2 years ago
5 0

Answer:

A is correct and so is D (C = 64b <u><em>+ 16c</em></u>, but it is meant to be -16)

Step-by-step explanation:

Hope this helps! Please mark as Brainliest!

Aleonysh [2.5K]2 years ago
5 0
It’s is A and D if u would really like two know
You might be interested in
Suppose that x and y vary inversely and that y = 5 when x = 1. What is y when x = 15?
LiRa [457]

Answer:

Y=1/3

Step-by-step explanation:

X=k/y

So let's make k the subject of formula

k=xy

x=1,y=5

So let's substitute

k=1×5

k=5

So we are to determine the value for y when x is 15

So let's solve

Y=k/x

Y=5/15

Y=1/3

Y=0.333333~0.3

7 0
3 years ago
7th grade math help lol
ELEN [110]

Step-by-step explanation:

F and C, I think those are the only ones

7 0
3 years ago
A music store sold a total of 27 used trumpets and clarinets in one month. Trumpets cost $149 and clarinets cost $99. If total s
Annette [7]

Answer:

The number of clarinets musical store sold was 16. and number of trumpets musical store sold was 11.

Step-by-step explanation:

Let the musical store sells 'x' number of trumpets and 'y' number of clarinets.

According to question,

Total number of  trumpets and clarinets sold is 27 that is

x+y=27 ..............(1)

Also given Trumpets cost $149 and clarinets cost $99.

then the shop sold x trumpets for $149x and sold y clarinets for $99y and total sales were $3233.

thus, 149x+99y=3233  ...........(2)

Solving for equation (1) and (2),

Multiply equation (1) by 149 , we get

(1) ⇒ 149x+149y=4023  ........(3)

Now, subtract equation (3) from equation (2) , we get

149x+149y-(149x+99y)=4023-3233

\Rightarrow 149x+149y-149x-99y=790

\Rightarrow 149y-99y=790

\Rightarrow 50y =790

\Rightarrow y =\frac{790}{50}=15.8

Thus, number of clarinets musical store sold was 15.8 but since clarinets are to be in whole number rounding off to the nearest integer 16.

and put y = 16 in (1) , we get

x+y=27 \Rightarrow x+16=27 \Rightarrow x=27-16=11

Thus, number of trumpets musical store sold was 11.


4 0
2 years ago
Help i need ittt!!!!!
borishaifa [10]

Answer:

Point A

Hope This Helps!    Have A Nice Day!!

6 0
3 years ago
I need the simplified expression for this please ​
slava [35]
When you simplify you’ll get 4x6/2 next you’ll simply again and get 24/2 and then your final answer should be 12.
6 0
3 years ago
Read 2 more answers
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