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3 years ago

Helpppppppppppppppppppppppppppppp

Mathematics

1 answer:

ziro4ka [17]3 years ago

8 0

Ha. That looks alot like i-ready. (i-ready sucks butt.)

But the horror that is i-ready aside, your answer is the third one : The proportion of grandparents that feel safe entering their account information online is 0.32.

32% converted to a decimal is 0.32, and 68% converted to a decimal is 0.68. That would mean that the proportion for grandparents that feel safe doing so is 0.32, and the number of grandparents that don't feel safe doing so is 0.68.

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I need help in this exercise

grigory [225]

Answer:

your answer is 9 because 9x2=18

Step-by-step explanation:

pls tell me if i'm wrong i hate being wrong :c

4 0

4 years ago

There are 16 coins totaling $1.08. All 16 coins were pennies, nickels, and dimes. The number of dimes is equal to the sum of the

iVinArrow [24]

Answer:

Let the number of nickels be x

Let the number of pennies be y

Let the number of dimes be z

Now z=x+y

FIrst equation:

z+x+y=16

Subsittue for z:

x+y+x+y=16

y=8-x (subsitution)

Hope this helps :)

Step-by-step explanation:

3 0

3 years ago

Find the percent decrease. Round to the nearest percent.

xenn [34]

Answer:

It should be -3.125%

Step-by-step explanation:

(124 - 128)/128 × 100

-4/128 × 100 = -3.125%

6 0

3 years ago

Read 2 more answers

Ivan and tanya share £150 in the ratio 4:1 how much more ivan gets compared to tanya

shusha [124]

Answer:

Given statement: Ivan and Tanya share £150 in the ratio 4:1

let the number be x.

Then, the share of Ivan be 4x and the share of Tanya be x.

From the given scenario,

the equation that would best represent the given will be;

$4x+x =\£150$

Combine like terms;

$5x =\£150$

Divide both sides by 5 we get;

$\frac{5x}{5}=\frac{\£150}{5}$

Simplify:

x =£30

Then,

the share of Ivan is, 4x = $4 \cdot 30 =\£120$

and the share of Tanya is, x =£30

Therefore, £90 more Ivan gets compared to Tanya.

3 0

4 years ago

Read 2 more answers

What type of function do you think models the amount of medicine in a person’s bloodstream after a certain amount of time?

leva [86]

Answer:

The exponential decay function.

Step-by-step explanation:

The exponential decay function can be used to model the amount of medicine in a person's bloodstream after a certain amount of time. When a drug is administered to a persons bloodstream perhaps through intravenous injections, the exponential decay function measures the initial concentration of the drug and then after a time t, it notes the new concentration. To obtain the result, the equation below is used:

C(t)=C(0)e^(-kt)

where,

k= constant

C(0)= Initial concentration after the injection

C(t)= Concentration after time t

5 0

3 years ago