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3 years ago

Norachai left the mall and traveled toward

Mathematics

1 answer:

sweet-ann [11.9K]3 years ago

4 0

Answer:

I’m pretty sure it’s 160

Step-by-step explanation:

40 mph times 4 hours is 160 miles

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Write down the next three terms of these number patterns 5;11;17;23

RideAnS [48]

29 , 35 , 41
the sequence is going up
in 6s

3 0

3 years ago

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A store pays $954 for an oil painting and marks the price up by 34%. What is the new<br> price?

sineoko [7]

Answer:$678.36

Step-by-step explanation:

954*.34=324.36

354+324.36=$678.36

7 0

3 years ago

If a baseball card appreciates exponentially in value by 50% over 10 years, what is its annual appreciation (growth) rate? Pleas

Natali [406]

Using an exponential function, it is found that it's annual growth rate is of 4%.

<h3>What is an exponential function?</h3>

An increasing exponential function is modeled by:

$A(t) = A(0)(1 + r)^t$

In which:

A(0) is the initial value.

r is the growth rate, as a decimal.

In this problem, the card appreciates exponentially in value by 50% over 10 years, hence:

A(10) = 1.5A(0).

Thus:

$A(t) = A(0)(1 + r)^t$

$1.5A(0) = A(0)(1 + r)^{10}$

$(1 + r)^{10} = 1.5$

$\sqrt[10]{(1 + r)^{10}} = \sqrt[10]{1.5}$

1 + r = 1.04.

r = 0.04.

0.04 x 100% = 4%.

It's annual growth rate is of 4%.

More can be learned about exponential functions at brainly.com/question/25537936

7 0

3 years ago

What number is 25% of 280

lara [203]

70 is 25% of 280. 25% is the same as 1/4 and 1/4 of 280 is 70

3 0

4 years ago

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Helppp this is my math test <br><br> Which model is 85% shaded?

Anettt [7]

Answer:

Model 1 represents 85% shaded area.

Step-by-step explanation:

Here, each model consists of equal sized rectangles.

Please refer to attached figure to know the model number.

Model 2 (on top right of question figure) contains a total of 20 such rectangles out of which 13 are shaded. As per formula of percentage:

$\text{Percentage of shaded area} = \dfrac{\text{Number of shaded rectangles}}{\text{Total number of rectangles}} \times 100\\\Rightarrow \dfrac{13}{20}\times 100 = 65\%$

Model 3 (on bottom left of question figure) contains a total of 16 such rectangles out of which 10 are shaded. As per formula of percentage:

$\text{Percentage of shaded area} = \dfrac{10}{16}\times 100 = 62.5\%$

Model 4 (on bottom right of question figure) contains a total of 16 such rectangles out of which 13 are shaded. As per formula of percentage:

$\text{Percentage of shaded area} = \dfrac{13}{16}\times 100 = 81.25\%$

Model 1 (on top left of question figure) contains a total of 20 such rectangles out of which 17 are shaded. As per formula of percentage:

$\text{Percentage of shaded area} = \dfrac{17}{20}\times 100 = 85\%$

Hence, model 1 is the correct answer.

3 0

3 years ago