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aalyn [17]
4 years ago
9

Bianca and Meredith are sisters. Meredith's height is 23 of Bianca's height plus 32 inches. Meredith is 60 inches tall. M Write

an equation to find Bianca's height, x, in inches.
Mathematics
2 answers:
jeyben [28]4 years ago
6 0

Answer:

67584

Step-by-step explanation:

I think your answer is wrong becasue it doesnt show 42 or 45 or whatever he or she put but anyway its wrong

Anna [14]4 years ago
5 0

Answer:

The height of Bianca  =  42 inches

Step-by-step explanation:

The given height of Meredith = 60 inches

Let us assume the height of Bianca = x inches

Now, given Meredith's height  =  2/3 of Bianca's Height + 32 inches

\implies  60 = \frac{2}{3 }  \times x  + 32

or,\frac{2}{3 }  \times x  = 60 -32  = 28\\\implies x = 28 \times  \frac{3}{2 }  = 42

or, x = 42

Hence the given height of Bianca  = x = 42 inches

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A ball is thrown into the air from an apartment balcony and falls to the ground. The height of the ball, h metres, t seconds aft
andriy [413]

Answer:

1+2\sqrt{2} seconds

Step-by-step explanation:

When the ball hits the ground, its height will obviously be 0. Therefore, you can set up the equation the following way:

0=-5t^2+10t+35 \\\\-5(t^2-2t-7)=0

Plugging this into the quadratic equation, you get:

t=\dfrac{2\pm\sqrt{4+28}}{2}= \\\\\dfrac{2\pm4\sqrt{2}}{2}= \\\\1\pm2\sqrt{2}

Since the time must be positive, it takes the ball 1+2\sqrt{2} seconds to hit the ground, or around 3.828. Hope this helps!

7 0
3 years ago
Can someone please help I will give you 30 points and brainliest if the answer is right also no links please
Zolol [24]

Answer:

B: BC ≅EC

Step-by-step explanation:

You know that the two angles starting in C are congruent (they're opposite by vertex C).

Given that the B angle and the E angle are congruent, in order for the two triangles to be congruent by A(ngle)S(ide)A(ngle) you want the side inbetween to be congruent. That is BC and EC. Option B

5 0
3 years ago
Brianna went shopping at Forever 21 and spent a total of $68. Her purchase included a pair of jeans at $32 and t-shirts for $12
Blizzard [7]

Answer:

68 = 12t + 32

3 0
3 years ago
A satellite is composed of 30 modular units, each of which is equipped with a set of sensors, some of which have been upgraded.
Mazyrski [523]

Answer:

1/7 (option d) of the sensors on the satellite have been upgraded

Step-by-step explanation:

Each unit contains the same number of non-upgraded sensors

number of non-upgraded sensors for each module (nus)

total number of upgraded sensors on the satellite (tus)

satellite is composed of 30 modular units

total number of non-upgraded sensors on the satellite (tnus):

tnus=30*nus

total number of sensors on the satellite (ts):

ts=tnus+tus = 30*nus + tus (I)

The number of non-upgraded sensors on one unit is 1/5 the total number of upgraded sensors on the entire satellite

nus=(1/5)*tus

tus = 5 * nus (II)

Fraction of the sensors on the satellite have been upgraded (FU):

FU = tus/ts

Using I and II

FU= (5* nus)/(30*nus + tus)

FU = (5* nus)/(30*nus + 5 * nus)

FU = (5* nus)/(35*nus)

FU = 1/7

1/7 (option d) of the sensors on the satellite have been upgraded

6 0
3 years ago
O preço do diesel sofreu três alterações ao longo do último trimestre de 2017. A primeira alteração foi em outubro, cujo aumento
EleoNora [17]

Answer:

47.84%

Step-by-step explanation:

The easiest method to solve this exercise is to assume that the starting diesel price is 100 reais.

Now we will calculate each increase with our assumption:

1. Initial price plus 10% increase, therefore:

100 + 100 * 0.1 = 110 reais

2. Additional 20% increase in relation to 110 reais:

110 + 110 * 0.2 = 132 reais

3. Additional 12% increase in relation to 132 reais:

132 + 132 * 0.12 = 147.84 reais.

What it means is that the price would be 147.84 reais.

Since our assumption is 100, we can know that there was an increase of almost 47.84% in relation to the initial price that we assumed at the beginning.

5 0
4 years ago
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