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3 years ago

Work out the size of angle X ?

Mathematics

1 answer:

mote1985 [20]3 years ago

4 0

Answer:

x = 121°

Step-by-step explanation:

∠ 1 + 115° = 180°

∠ 1 = 180 - 115

∠ 1 = 65°

∠ 2 + 304° = 360°

∠2 = 360 - 304

∠ 2 = 56°

∠ 1 + ∠ 2 + ∠ 3 = 180°

65° + 56 ° + ∠ 3 = 180°

∠3 = 180 - 65 - 56

∠ 3 = 59°

∠3 + x = 180°

59° + x = 180°

x = 180 - 59

x = 121 °

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Solve c= 8a-3b for a

Vesnalui [34]

Answer:

(c+3b)/8 = a

Step-by-step explanation:

c= 8a-3b

Add 3b to each side

c+3b= 8a-3b+3b

c+3b = 8a

Divide each side by 8

(c+3b)/8 = 8a/8

(c+3b)/8 = a

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3 years ago

Alicia drives her car 287.5 miles in 5 hours. What is the constant of proportionality that relates the total number of miles, y,

Sphinxa [80]

Answer:

57.5

Step-by-step explanation:

The constant of proportionality is "k" in the equation ...

y = kx

It can be found from values of x and y using ...

k = y/x

For the given values, it is ...

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The constant of proportionality relating miles to hours is 57.5.

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3 years ago

Which value would make the inequality true?

nata0808 [166]

Answer:

Step-by-step explanation:

Hope this helps. . .

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2 years ago

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A sporting goods store is having a closeout on a certain style of running shoes. They are marked 55% off the regular price. The

sweet-ann [11.9K]

Answer:

43.97

Step-by-step explanation:

just minus both the numbers but dont forget to put the percentage after the 55

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2 years ago

Why is 1/6 greater than 1/8 but less than 1/3

VladimirAG [237]

So first thing we have to realise is that we have to make them have equal denominators. So,

$\frac{1}{6} = \frac{4}{24} \\ \\ \frac{1}{8} = \frac{3}{24} \\ \\ \frac{1}{3} = \frac{8}{24}$ .

Now order the fractions....so,

$\frac{1}{3} = \frac{8}{24} \\ \\ \frac{1}{6} = \frac{4}{24} \\ \\ \frac{1}{8} = \frac{3}{24}$

Now we can see why $\frac{1}{6}$ is greater than $\frac{1}{8}$ but less than $\frac{1}{3}$

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3 years ago

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