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2 years ago

Lily ran 100 meters in 15 seconds. How long did she take to run 2 meters

Mathematics

2 answers:

denis23 [38]2 years ago

7 0

.15 seconds because I said

postnew [5]2 years ago

7 0

If Lily runs 100 meters in 15 seconds, then she runs 1 meter in 0.15 seconds. (Just dividing 15 by 100)

If she runs 1 meter in 0.15 seconds, then she’ll run 2 meters in 0.3 seconds (0.15 + 0.15)

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If a circle has a circumference of 103 find the arc inercepted by a central angle of 115

castortr0y [4]

360 divided by 115 = 3.13. Then you divide the 103 by the 3.13 = 32.90

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3 years ago

11x + 12 = 8x - 9 ... please

Marat540 [252]

Assignment: $\bold{\Solve \ Equation: \ 11x+12=8x-9}$

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Answer: $\boxed{\bold{x=-7}}$

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Explanation: $\downarrow\downarrow\downarrow$

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[ Step One ] Subtract 12 From Both Sides

$\bold{11x+12-12=8x-9-12}$

[ Step Two ] Simplify

$\bold{11x=8x-21}$

[ Step Three ] Subtract 8x From Both Sides

$\bold{11x-8x=8x-21-8x}$

[ Step Four ] Simplify

$\bold{3x=-21}$

[ Step Five ] Divide Both Sides By 3

$\bold{\frac{3x}{3}=\frac{-21}{3}}$

[ Step Six ] Simplify

$\bold{x=-7}$

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$\bold{\rightarrow Mordancy \leftarrow}$

4 0

3 years ago

Read 2 more answers

One leg of a right triangle is 7 inches longer than the smaller leg and the hypotenuse is 8 inches longer than the smaller leg.

Makovka662 [10]

Smaller leg = x
longer leg = y
hypotenuse = z

y=x+7
z=x+8

due to
${z}^{2} = {x}^{2} + {y}^{2} \\ (x + 8) ^{2} = {x}^{2} + (x + 7) ^{2} \\ {x}^{2} + 16x + 64 = {x}^{2} + {x}^{2} + 14x + 49 \\ {x}^{2} + 16x + 64 = 2 {x}^{2} + 14x + 49 \\ {x}^{2} - 2 {x}^{2} + 16x - 14x + 64 - 49 = 0 \\ - {x}^{2} + 2x + 15 = 0 \\ {x}^{2} - 2x - 15 = 0 \: \: (multiplied \: by \: - 1) \\ (x - 5)(x + 3) = 0 \\ then \: \: x = 5 \: \: or \: \: x = - 3$
but x cannot be -3
so smaller leg is 5 inches

then longer leg = 5+7 = 12 inches
and hypotenuse = 5+8 = 13 inches

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3 years ago

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2 years ago

5×(3-2)=, what is itin expanded form, Explain

Juli2301 [7.4K]

I hope this helps you

5×(3-2)=5×1=5

or

5×3+5×(-2)=15+(-10)=15-10=5

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3 years ago