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AVprozaik [17]
3 years ago
14

7x + 2y=-12 Y=-3x-4

Mathematics
1 answer:
BabaBlast [244]3 years ago
5 0

Answer:

x=-4

Step-by-step explanation:

X would be -4 because if you distribute 2 to (-3x-4) it would give you (-6x-8) and then collecting like terms you would get (x-8=-12)  then you would add 8 to -12 whih would equal -4.

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Two liquids Kaylin mixed two liquids for science experiment one container had 7/8 Cup and the other health 9/10 cup what is the
seraphim [82]

Answer:

Step-by-step explanation:

<em>Step 1: Determine quantity per liquid</em>

liquid 1=7/8 cup

liquid 2=9/10 cup

<em>Step 2: Derive expression to calculate total amount of mixture</em>

The expression below can be derived;

T=a+b

where;

T=total amount of mixture

a=total amount of liquid 1

b=total amount of liquid 2

In our case;

a=7/8 cup

b=9/10 cup

replacing;

T=(7/8)+(9/10)=1 31/40 cups

The total amount of mixture=1 31/40 cups

3 0
3 years ago
What is the volume of a sphere with a diameter of 15 cm? Round the answer to the nearest whole number.
AveGali [126]

Answer:

1767 cm³

Step-by-step explanation:

We can use volume V = 4/3 π r³

We have diameter of 15 cm. To get radius, we need to divide diameter by 2.

r = 7.5 cm

So now plug in r = 7.5 then calculate V:

V = 4/3 π ( 7.5 )³

V =  4/3 π * 421.875 ≈ 1767.145 ≈ 1767

Hope this helps.

8 0
4 years ago
WILL GIVE 5 STARS TO THE PERSON WHO HELPS WITH AN EXPLANATION!!! If the 32 ounce bottle is 20% more than the typical bottle, how
Aleks04 [339]
So if 32 oz is 20% more than the average bottle, you multiply 32 by .20 which gives you 6.4. This means that the 32 oz bottle is 6.4 oz more than the regular bottle. Furthermore, 32 - 6.4 = 25.6 so that's how big the typical bottle is.
3 0
3 years ago
I NEED HELP ASAP Which equation is equivalent to: −10r−6=115
otez555 [7]

Answer:

the correct answer is B

6 0
3 years ago
Read 2 more answers
Explain what can happen if you line up the digits incorrectly when you rewrite additional problem
Natasha_Volkova [10]
So basiclly you will end up getting the wrong answer. For example 234+23.
If you lined it up incorrectly you might get 464. It is actually 257. This is wy you should line it up correctly.
~JZ
Hope it helps! Good Luck!

8 0
3 years ago
Read 2 more answers
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