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3 years ago

There are 15 students going on a field trip. If 3/5 of them pack their lunches, how many students pack their lunches?

Mathematics

1 answer:

IrinaVladis [17]3 years ago

8 0

Answer:

9 students packed their lunches

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Dinosaurs have been extinct for about 6.5×10 exponent seven years while Neanderthals have been extinct for about 3.0×10 exponent

shutvik [7]

Answer:

6.49 × 10⁷ years

Step-by-step explanation:

For Dinosaurs

Dinosaurs have been extinct for about 6.5×10 exponent seven years

6.5 × 10⁷ years

For Neanderthals

Neanderthals have been extinct for about 3.0×10 exponent four years

= 3.0 × 10⁴ years

How many longer is calculated by Subtraction

6.5 × 10⁷ years - 3.0 × 10⁴

= 64970000 years

= 6.49 × 10⁷ years

5 0

3 years ago

PLS HELP I ONLY HAVE HR

Amiraneli [1.4K]

Answer:

a $2

Step-by-step explanation:

One of the ordered pairs were (1, 2) which meant that at 1 bag of candy, the total cost in dollars is 2 based on the labelling of the x- and y-axis. Thus, the cost of one bag of candy is $2.

3 0

3 years ago

Christine's middle school has a total of 900 students and 45 teachers . The local high school has 110 teachers & a student-t

qaws [65]

Answer:

2,200 students

Step-by-step explanation:

To find the number of students, create a proportion which is two equal ratios. Since the middle school and the high school are proportional then they have equal ratios.

$\frac{students}{teachers}= \frac{900}{45}=\frac{x}{110}$

Solve for x by cross multiplying by multiplying the numerator and denominator of each fraction.

900(110) = 45(x)

99,000=45x

2,200 = x

5 0

3 years ago

It costs the quality company $.14 per mile to run its van. On Monday the van traveled 87.6 miles. How much did it cost to run th

aksik [14]

We can find this answer by multiplying .14 by 87.6 to represent 14 cents for every mile.

87.6
<u> .14
</u>12.264

Since we are rounding to the nearest cent, that being the hundredths place, we know that it cost $12.26 to run the van that day.

8 0

4 years ago

Read 2 more answers

For the second quarter of 2015, Apple sold 61.0 million iPhones. This represented a year- over-year increase of 40%. What were t

Anastaziya [24]

Answer:

It sold 43.57 iPhones for the same quarter in the previous year.

Step-by-step explanation:

It sold 61.0 million iPhone, which is an increase of 40% over the value of the previous year x.

This can be interpreted as:

61 million is 140% = 1.4 of the previous year amount, that is, x. So

$1.4x = 61$