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4 years ago

Can anyone help I’ll mark brainliest!!!!

Mathematics

1 answer:

guajiro [1.7K]4 years ago

5 0

Answer: x = 156/23 or 6.783

Step-by-step explanation:

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#7 please help!!!!!!!!!!!!!!!!!!!!!!!!!

Ira Lisetskai [31]

If they all painted at the same rate the equation is this

mothers 8
daughters 12 at 220 sq ft

mothers 6
daughters 8 at 152 sq ft

220 +152 =372 divided by 34 (because they all painted at the same rate)=10.94 sq ft they each painted

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3 years ago

Pls i need this asap

Goryan [66]

Answer:

It would have to be (C) 50.27 because 25 is too short for a diameter of 8 seeing it would be 8x4 to get 32 in which 25 is not long enough for. So the answer is C.

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3 years ago

Nuts.com sells raw almonds for $10 per pound and roasted pistachios for $12 per pound. Christopher spends $70, before taxes and

sp2606 [1]

Christopher purchased 2.8 pounds of almonds and 3.5 pounds to roasted pistachios.

Step-by-step explanation:

Cost of almonds per pound = $10

Cost of roasted pistachios = $12

Total amount spent = $70

Weight of nuts = 6.3

Let,

Weight of almonds = x

Weight of roasted pistachios = y

According to given statement;

x+y=6.3 Eqn 1

10x+12y=70 Eqn 2

Multiplying Eqn 1 by 10

$10(x+y=6.3)\\10+10y=63\ \ \ Eqn\ 3$

Subtracting Eqn 3 from Eqn 2;

$(10x+12y)-(10x+10y)=70-63\\10x+12y-10x-10y=7\\2y=7$

Dividing both sides by 2

$\frac{2y}{2}=\frac{7}{2}\\y=3.5$

Putting y=3.5 in Eqn 1

$x+3.5=6.3\\x=6.3-3.5\\x=2.8$

Christopher purchased 2.8 pounds of almonds and 3.5 pounds to roasted pistachios.

Keywords: linear equations, elimination method

Learn more about elimination method at:

#LearnwithBrainly

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3 years ago

Which expression is equivalent to (7^3)^−2?

Verdich [7]

Use the exponent property regarding a power to power. When you have a power to power, you multiply both powers. In this case, you will get 7^-6. That is equivalent to the first option. I hope this helped, though it is a bit late xD.

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4 years ago

SOMEONE WHO IS GOOD AT EASY MATH! (6th Grade Mathematics)

cricket20 [7]

Answer: Victims are naying that the rogue is a girl.

Step-by-step explanation:

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2 years ago