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mamaluj [8]
3 years ago
12

Brock took 4 piano lessons last month. For each

Mathematics
1 answer:
Nastasia [14]3 years ago
8 0
B and C are the answers
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4. The length of a rectangle is 4 more than its width. The perimeter of the rectangle is 60cm.
sergey [27]

Step-by-step explanation:

let width = w

if width = w, then length = w + 4

Therefore the perimeter is 2w + 2(w+4)

2w + 2(w+4) = 4w + 8

perimeter = 60cm

4w + 8 = 60

<em>-8</em>

4w       = 52

<em>divide each side by 4</em>

w = 13

length = w+4

therefore, length = 17

3 0
3 years ago
Amanda drove 348 miles using 15 gallons of gas. at this rate, how many gallons of gas would she need to drive 232 miles?
stich3 [128]

348 /15 = 23.2 miles per gallon

232 miles/ 23.2 miles per gallon = 10 gallons

8 0
3 years ago
Read 2 more answers
22. I = Prt; P<br><br> What do I first? It says to solve the equation for the given variable.
LuckyWell [14K]

<em>the</em><em> </em><em>fir</em><em>st</em><em> </em><em>thing</em><em> </em><em>you</em><em> </em><em>nee</em><em>d</em><em> </em><em>to</em><em> </em><em>do</em><em> </em><em>is</em>

<em>div</em><em>ide</em><em> </em><em>the</em><em> </em><em>who</em><em>le</em><em> </em><em>equ</em><em>ation</em><em> </em><em>by </em><em>rt</em><em> </em><em>as</em><em> </em><em>sh</em><em>own</em><em> </em><em>bel</em><em>ow</em>

<em>\frac{i}{rt}  =  \frac{prt}{rt}</em>

<em>then</em><em> </em><em>you</em><em> </em><em>cance</em><em>l</em><em> </em><em>ou</em><em>t</em><em>.</em><em> </em><em>leav</em><em>ing</em>

<em>\frac{i}{rt}  = p</em>

<em>which</em><em> </em><em>is</em><em> </em><em>the</em><em> </em><em>sam</em><em>e</em><em> </em><em>as</em>

<em>p =  \frac{i}{rt}</em>

3 0
3 years ago
A. 5x - 2 = 8<br>b. 4x - 3= 2x + 9<br>C. 6x + 3 = 2x + 8​
Elena L [17]

Answer:

a) x=2

b)x=12

c)x=5/4

Step-by-step explanation:

a)5x-2=8

5x=8+2

5x=10

x=2

b)4x-3=2x+9

4x-2x=9+3

2x=12

x=6

c)6x+3=2x+8

6x-2x=8-3

4x=5

x=5/4

Proof:

a)5x-2=8

5(2)-2=8

10-2=8

8=8

b)4x-3=2x+9

4(12)-3=2(12)+9

48-3=24+9

45=45

c)6x+3=2x+8

6(5/4)+3=2(5/4)+8

30/4+3=10/4+8

15/2+3=5/2+8

10.5=10.5

Hope this helps ;) ❤❤❤

4 0
3 years ago
my granola bar recipe calls for 8 2/3ups of pecans and 4 1/3 cups of walnuts. How many cups of nuts are needed in the recipe?
UNO [17]
8 + 4 = 12
1/3 + 2/3 = 1
12 + 1 = 13 cups of nuts.
5 0
4 years ago
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