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3 years ago

Solve + 17 = 20 for x and plot its value on the number line given below.

Mathematics

1 answer:

aalyn [17]3 years ago

8 0

Answer:

x=12

Step-by-step explanation:

x/4 + 17 =20

Subtract 17 from each side

x/4 +17-17 =20-17

x/4 = 3

Multiply each side by 4

x/4 *4 = 3*4

x =12

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Can’t figure out number 10

Ivanshal [37]

Answer:

r = 15 1/6

Step-by-step explanation:

change every thing to have a 6 in the denominator

31/6 = 5 1/6

60/6 = 10

add the 31/6 to both sides to get the r by itself

60/6 + 31/6 = 91/6

r = 15 1/6

8 0

4 years ago

What value of P makes the equation true? 2.5 + 0.15p = 0.4p p = ___

qwelly [4]

Step-by-step explanation:

2.5 + 0.15p = 0.4p

0.25p = 2.5 (subtract 0.15p on both sides)

p = 10 (multiply 4 on both sides)

7 0

3 years ago

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Simplify. Your answer should contain only positive exponents with no fractional exponents in the denominator.

mart [117]

Answer:

$\dfrac{x^{\frac{2}{3}}y^{\frac{1}{4}}}{4y^{2}}$ .

Step-by-step explanation:

The given expression is

$\dfrac{3y^{\frac{1}{4}}}{4x^{-\frac{2}{3}}y^{\frac{3}{2}}\cdot 3y^{\frac{1}{2}}}$

We need to simplify the expression such that answer should contain only positive exponents with no fractional exponents in the denominator.

Using properties of exponents, we get

$\dfrac{3}{4\cdot 3}\cdot \dfrac{y^{\frac{1}{4}}}{x^{-\frac{2}{3}}y^{\frac{3}{2}+\frac{1}{2}}}$ $[\because a^ma^n=a^{m+n}]$

$\dfrac{1}{4}\cdot \dfrac{y^{\frac{1}{4}}}{x^{-\frac{2}{3}}y^{2}}$

$\dfrac{1}{4}\cdot \dfrac{x^{\frac{2}{3}}y^{\frac{1}{4}}}{y^{2}}$ $[\because a^{-n}=\dfrac{1}{a^n}]$

$\dfrac{x^{\frac{2}{3}}y^{\frac{1}{4}}}{4y^{2}}$

We can not simplify further because on further simplification we get negative exponents in numerator or fractional exponents in the denominator.

Therefore, the required expression is $\dfrac{x^{\frac{2}{3}}y^{\frac{1}{4}}}{4y^{2}}$ .

5 0

4 years ago

Im 10 and I in 4th grade

Zolol [24]

Answer:

So that means your birthday is probably right after the cutoff date or maybe 1 or 2 months after the cutoff date. Enjoy your time right now and have a good day!

6 0

2 years ago

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What is the IQR one, two ,three of u these following numbers 50,70,120,130,145,70,55,45

Softa [21]

50, 70, 120, 130, 145, 70, 55, 45

Put these numbers in order from least to greatest.

45, 50, 55, 70, 70, 120, 130, 145

Q₁=52.5

Median=70

Q₃= 125

~Hope I helped!~

7 0

4 years ago

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