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belka [17]
3 years ago
9

What is 5x5 cause I don’t know what it is

Mathematics
2 answers:
Y_Kistochka [10]3 years ago
7 0

Answer:

25

Step-by-step explanation:

that the answer pick me brainliest plz

grigory [225]3 years ago
6 0

Answer:

25

Step-by-step explanation:

5 + 5 + 5 + 5 + 5 = 25

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Can you please help me on 2,3,4, and 5? I will mark the brainliest plus 12 points for answering.
Marianna [84]

Answer:

2) Exact

3) Exact

4) Exact

5) Approximation

Step-by-step explanation:

8 0
3 years ago
A metalworker has a metal alloy that is 15​% copper and another alloy that is 60​% copper. How many kilograms of each alloy shou
coldgirl [10]

18 kg of 15% copper and 72 kg of 60% copper should be combined by the metalworker to create 90 kg of 51% copper alloy.

<u>Step-by-step explanation:</u>

Let x = kg of 15% copper alloy

Let y = kg of 60% copper alloy

Since we need to create 90 kg of alloy we know:

x + y = 90

51% of 90 kg = 45.9 kg of copper

So we're interested in creating 45.9 kg of copper

We need some amount of 15% copper and some amount of 60% copper to create 45.9 kg of copper:

0.15x + 0.60y = 45.9

but

x + y = 90

x= 90 - y

substituting that value in for x

0.15(90 - y) + 0.60y = 45.9

13.5 - 0.15y + 0.60y = 45.9

0.45y = 32.4

y = 72

Substituting this y value to solve for x gives:

x + y = 90

x= 90-72

x=18

Therefore, in order to create 90kg of 51% alloy, we'd need 18 kg of 15% copper and 72 kg of 60% copper.

6 0
3 years ago
How do you graph y=7/2x-2
RoseWind [281]
You can either make a table using any numbers you would like (I would suggest -5 to 5) and then graphing the rule

ex. (7/2)(-5)-2 = -19.5 (I multiplied (7/2) by -5 and then subtracted 2) 


Or you can put the rule in a graphing calculator and check the points from there 
8 0
3 years ago
I need answers fast plsss
Nonamiya [84]

Answer:

1/6

Step-by-step explanation:

the form you're using is slope-intercept. That is

y=mx+b

where y= y coordinate

m=slope

x= x coordinate

and b= y intercept

so, m in that equation is 1/6, so the slope is 1/6

Hope this helps!

6 0
3 years ago
Help please i need this really bad
Kipish [7]

Answer:

c

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
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