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3 years ago

Hi, I really need help with my homework please help

Mathematics

2 answers:

frez [133]3 years ago

7 0

1. you would divide the distance (204m) by the time it took (3h).

204 ÷ 3 = 68mph

each hour she would drive 68 miles (3 hours to reach 204 miles).

2. essentially the same thing. it takes $16.80 for 4 gallons (which you divide).

$16.80 ÷ 4 = $4.2

4.2 fits into 16.80 4 times.

3. this is a bit more trickier. there is 60 minutes in an hour. 20 can fit into 60, 3 times. then you times 5 by 3.

60 ÷ 20 = 3.
5 × 3 = 15

4.
a. 5 lemons cost $1.80. to find out a single lemon you divide $1.80 by 5 to see how much 1 is.

1.80 ÷ 5 = $0.36

b. you take the single amount to see how many lemons are 9.

$0.36 × 9 = $3.24

multiplying is literally just 0.36 + 0.36 + 0.36 + 0.36 + 0.36 + 0.36 + 0.36 + 0.36 + 0.36

8090 [49]3 years ago

5 0

Number one is 68 you have to divide on this download photomath its better because all you have to do is take a picture and it shows you how to do it ;)

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Mr Smith takes orders from 12 people. 8 people want coffee and 6 people want donuts. how many people want coffee and donuts?

PIT_PIT [208]

Answer:

Step-by-step explanation:

8 + 6 - 12 = 2

5 0

3 years ago

Quadrilateral abcd is a rhombus and points c, d, and e are on the same line. is quadrilateral abde a rhombus?

Step2247 [10]

No, because BC and BD are not the same lengths. If AB = BC, then AB and BD are not the same lengths -> ABDE is not a rhombus.

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3 years ago

Solve the equation 3/4x+3-2x = -1/4+1/2x+5

elena55 [62]

Hi there! The answer is x = -1

Let's solve this equation step by step!
$\frac{3}{4} x + 3 - 2x = - \frac{1}{4} + \frac{1}{2} x + 5$

First collect terms.
$- 1 \frac{1}{4} x + 3 = \frac{1}{2} x + 4 \frac{3}{4}$

Subtract (1/2)x from both sides.
$- 1\frac{3}{4} x + 3 = 4 \frac{3}{4}$

Subtract 3 from both sides.
$- 1\frac{3}{4} x = 1 \frac{3}{4}$

And finally divide by -1 3/4
$x = \frac{7}{4} \div - \frac{7}{4} = \frac{7}{4} \times - \frac{4}{7} = - \frac{28}{28} = - 1$

8 0

3 years ago

Read 2 more answers

100 POINTS AND BRAINLIEST

zysi [14]

Answer:

8 square units and $\frac{40}{3}$ square units

Step-by-step explanation:

The area of the triangle ABC is 24 square units.

1. Triangles ABC and FBG are similar with scale factor $\frac{1}{3},$ then

$\dfrac{A_{\triangle FBG}}{A_{\triangle ABC}}=\dfrac{1}{9}\Rightarrow A_{\triangle FBG}=\dfrac{1}{9}\cdot 24=\dfrac{8}{3}\ un^2.$

2. Triangles ABC and DBE are similar with scale factor $\frac{2}{3},$ then

$\dfrac{A_{\triangle DBE}}{A_{\triangle ABC}}=\dfrac{4}{9}\Rightarrow A_{\triangle DBE}=\dfrac{4}{9}\cdot 24=\dfrac{32}{3}\ un^2.$

3. Thus, the area of the quadrilateral DFGE is

$A_{DFGE}=A_{\triangle DBE}-A_{\triangle FBG}=\dfrac{32}{3}-\dfrac{8}{3}=8\ un^2.$

and the area of the quadrilateral ADEC is

$A_{ADEC}=A_{\triangle ABC}-A_{\triangle DBE}=24-\dfrac{32}{3}=\dfrac{40}{3}\ un^2.$

4 0

3 years ago

Read 2 more answers

A bicycle shop is selling $500.00 bikes at 10% off. if the sales tax is 7% how much will the bike cost?

Vladimir [108]

The bike will cost $481.50
because
10% off of 500 is 50
so 500 - 50 = 450
Now include the sales tax which is
450 * 0.07 = 31.5
Now add the two totals to get
$481.50

4 0

3 years ago