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3 years ago

5

HELP PLEASE KHAN ACADAMY

1 answer:

pychu [463]3 years ago

4 0

Answer:

-45

Step-by-step explanation:

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Which equation represents the relationship shown in the table?

jeka94

Answer:

y=x+1.5

Step-by-step explanation:

Y is always 1.5 more than x.

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3 years ago

Which equation are true for x=-2 and x=2 check all that apply

ki77a [65]

1 it is true
${x}^{2} - 4 = 0 \\ {x}^{2} = + 4 \\ x = \sqrt{4} = 2$
2 it's not true
${x}^{2} = - 4$
3 it's not true
$3 {x}^{2} + 12 = 0 \\ 3 {x}^{2} = - 12 \\ {x}^{2} = \frac{ - 12}{3} = - 4 \\$
4 it's true
$4 {x}^{2} = 16 \\ {x}^{2} = \frac{16}{4} = 4 \\ x = \sqrt{4} = 2$
5- it's true
${2(x - 2)}^{2} = 0 \\ {(x - 2)}^{2} = 0 \\ x - 2 = 0 \\ x = 2$

4 0

4 years ago

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Is there Any one out there that could help me ASAP

gogolik [260]

Answer:

no there is no one.

Step-by-step explanation:

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3 years ago

Genna threw 45 grams of sugar into 55 grams of water. She made ___ grams of ___% sugar syrup.

OlgaM077 [116]

Answer:

She made She made 100 grams of 45% sugar syrup.

Step-by-step explanation:

Genna added 45 grams of sugar into 55 grams of water.

Total amount she mixes = 45 + 55 = 100 grams.

Percentage of sugar in total mixture (sugar syrup) = 45 grams sugar in 55 grams syrup.

$\text{\% by mass}=\dfrac{\text{mass of solute}}{\text{(mass of solute + mass of solvent)}} \times 100$

Here, Solute is sugar and Solvent is water.

mass of solute = 45

mass of solute + mass of solvent = 100

Putting values, we get,

$\text{\% by mass}=\dfrac{45}{100} \times 100$

$\text{\% by mass}=45\%$

Thus, She made She made 100 grams of 45% sugar syrup.

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3 years ago

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I need help with this math problem<br><br>what is 15% of $58?

Andre45 [30]

Answer:

15% of 58

15÷100×58

may this help u

8 0

3 years ago

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