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3 years ago

Write an equation that represents the line.

Mathematics

1 answer:

irinina [24]3 years ago

4 0

Answer:

y = 7/5x + 7

Step-by-step explanation:

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Jasmine tossed a coin 20 times. It lands on heads 14 times and tails 6 times. What is the relative frequency of landing on tails

Snowcat [4.5K]

Answer:

The relative frequency of landing on tails is 0.3.

Step-by-step explanation:

The relative frequency of an outcome A is:

The number of trials in which the outcome A happened divided by the total number of trials.

In this problem, we have that:

20 coin tosses, so 20 trials. On 6, it landed on tails.

6/20 = 0.3

This means that the relative frequency of landing on tails is 0.3.

4 0

3 years ago

Solve the inequality -1/3h_<7

elixir [45]

Answer:

The solution to the given inequality

$h\geq \frac{-1}{21}$

Step-by-step explanation:

Given inequality

$\frac{-1}{3h} \leq 7$

⇒ -1≤ 7× 3h

⇒ -1 ≤ 21 h

⇒ 21 h ≥ -1

⇒ $h\geq \frac{-1}{21}$

5 0

3 years ago

If Aldo puts 400 into a savings account that paid an interest rate of 5.4 percent What was the total amount in his account at th

Ne4ueva [31]

Answer:

$\$421.60$

Step-by-step explanation:

we know that

The simple interest formula is equal to

$A=P(1+rt)$

where

A is the Final Investment Value

P is the Principal amount of money to be invested

r is the rate of interest

t is Number of Time Periods

in this problem we have

$t=1\ year\\ P=\$400\\ A=?\\r=5.4\%=5.4/100=0.054$

substitute in the formula above

$A=400(1+0.054*1)$

$A=400(1.054)$

$A=\$421.60$

Remember that Interest is equal to

$I=A-P$

$I=\$421.60-\$400=\$21.60$

5 0

3 years ago

The perimeter of a rectangle is 34 units. Its width is 6.5 units. What is its length?

andreyandreev [35.5K]

If the width is 6.5 then double that to work out the two widths which would be 13. Take that from the perimeter so you're left with 21. Half 21 to work out one length which is 10.5. Length = 10.5

6 0

4 years ago

Dan buys a car for £2700.

BartSMP [9]

Answer:

The car will be worth £2516.22 in 5 years

Step-by-step explanation:

The rule of depreciating is

$A=P(1-r)^{t}$ , where

A is the new value

P is the original value

r is the rate in decimal

t is the time in years

∵ Dan buys a car for £2700

∴ P = 2700

∵ It depreciates at a rate of 1.4% per year

∴ r = 1.4% = 1.4/100 = 0.014

∵ We need to find how much it will be worth in 5 years

∴ t = 5

→ Substitute all of these values in the rule above to find A

∵ $A=2700(1-0.014)^{5}$

→ Use your calculator to find the answer

∴ A = 2516.22

∴ The car will be worth £2516.22 in 5 years

7 0

4 years ago