3 years ago

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Mathematics

2 answers:

Digiron [165]3 years ago

4 0

Answer:

Step-by-step explanation:

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Dima020 [189]3 years ago

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Answer:

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A lotion is made from an oil blend costing $1.50 per ounce and glycerin costing $1.00 per ounce. Four ounces of lotion costs $5.

yanalaym [24]

X-ounces of an oil blend,
y - ounces of glycerin
x + y = 4 ⇒ y = 4 - x
1.5 x + y = 5.50
1.5 x + 4 - x = 5.50
0.5 x = 5.50 - 4
0.5 x = 1.50
x = 3
y = 4 - 3 = 1
There are 3 ounces of an oil blend and 1 ounce of glycerin.

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3 years ago

Jillian measured the distance around a small fish pond as 27 yards. Which would be a good estimate for the distance across the p

ankoles [38]

27 (circumference) ➗ 3.14 (pi) = 8.59 (diameter)

Distance across (diameter) would be closest to 9.

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3 years ago

Which quadratic equation has solutions x=8 and x=−1?

andrezito [222]

There are two ways you can do this

$Using the formula$

${x}^{2} - (sum \: of \: roots)x + poduct \: of \: roots = 0$

${x}^{2} - (8+-1)x + - 1 \times 8 = 0$

${x}^{2} - 7x - 8 = 0$

$Working backwards$

$x = 8 \: or \: x = - 1$
$\Rightarrow x-8=0 \: or \: x+1=0$

$\Rightarrow (x-8)(x + 1)=0$
$\Rightarrow {x}^{2} + x -8x - 8 = 0$
$\Rightarrow {x}^{2} - 7x - 8 = 0$

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3 years ago

The owner of a deli recorded the number of customers who ordered each of four sandwiches available. If the deli has 50 customers

alexandr1967 [171]

160+100+180+60=500
180/500=0.36=36%
50x36%=18
That's your answer lovely~

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3 years ago

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Six times a number is at least four less than eight times the number. If x represents the number which will help the number

g100num [7]

"help the number ... ?"

6x ≥ 8x-4

Then 4≥2x, or 2≥x, or x≤2.

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3 years ago