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3 years ago

How do i solve 426 to nearest ten

2 answers:

6 0

426 to nearest ten is 430 because the rule is 1-4 is rounded to the 0 and 5-9 is rounded to the ten place. You just basically look at the place value and round it.

puteri [66]3 years ago

5 0

We look at the tens place

20 is in the tens place

now look at the Ones place

6 is in the Ones place

If it is 5 or greater we round it to the next ten, if it is 4 or less we keep it the same

6 is greater than 5

The number will be rounded to 430

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Find the measure of angle b. 40° A) 140° C) 40° B) 50° D) 136°

spayn [35]

Now,

b + 40° = 90° ( right angle )

or, b = 90° - 40°

◆ b = 50°

B) 50°

This is Right answer...

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3 0

3 years ago

A certain college graduate borrows 7864 dollars to buy a car. The lender charges interest at an annual rate of 13%. Assuming tha

White raven [17]

Answer:

Therefore rate of payment = $ 3145.72

Therefore the rate of interest = =$1573.17

Step-by-step explanation:

Consider A represent the balance at time t.

A(0)=$ 7864.

r=13 % =0.13

Rate payment = $k

The balance rate increases by interest (product of interest rate and current balance) and payment rate.

$\frac{dB}{dt} = rB-k$

$\Rightarrow \frac{dB}{dt} - rB=-k$ .......(1)

To solve the equation ,we have to find out the integrating factor.

Here p(t)= the coefficient of B =-r

The integrating factor $=e^{\int p(t) dt$

$=e^{\int (-r)dt$

$=e^{-rt}$

Multiplying the integrating factor the both sides of equation (1)

$e^{-rt}\frac{dB}{dt} -e^{-rt}rB=-ke^{-rt}$

$\Rightarrow e^{-rt}dB - e^{-rt}rBdt=-ke^{-rt}dt$

Integrating both sides

$\Rightarrow \int e^{-rt}dB -\int e^{-rt}rBdt=\int-ke^{-rt}dt$

$\Rightarrow e^{-rt}B=\frac{-ke^{-rt}}{-r} +C$ [ where C arbitrary constant]

$\Rightarrow B(t)=\frac{k}{r} +Ce^{rt}$

Initial condition B=7864 when t =0

$\therefore 7864= \frac{k}{r} - Ce^0$

$\Rightarrow C= \frac{k}{r} -7864$

Then the general solution is

$B(t)=\frac{k}{r}-( \frac{k}{r}-7864)e^{rt}$

To determine the payment rate, we have to put the value of B(3), r and t in the general solution.

Here B(3)=0, r=0.13 and t=3

$B(3)=0=\frac{k}{0.13}-( \frac{k}{0.13}-7864)e^{0.13\times 3}$

$\Rightarrow- 0.48\frac{k}{0.13} +11614.98=0$

⇒k≈3145.72

Therefore rate of payment = $ 3145.72

Therefore the rate of interest = ${(3145.72×3)-7864}

=$1573.17

4 0

3 years ago

(5x)/7 - x/14 = 9/7 solve for the unknown value this is a linear equation

Ahat [919]

Step-by-step explanation:

$\longmapsto \rm \dfrac{5x}{7} - \dfrac{x}{14} = \dfrac{9}{7} \\$

$\longmapsto \rm \dfrac{10x + x}{14} = \dfrac{9}{7} \\$

$\longmapsto \rm \dfrac{11x}{14} = \dfrac{9}{7} \\$

→ 11x(7) = 14(9)

→ 77x = 126

→ x = 126 ÷ 77

→ x = 1.63

7 0

3 years ago

One number is 2 less than a second number. Twice the second number is 5 less than 3 times the first. Find the two numbers.

Evgen [1.6K]

Answer:

9 and 11

Step-by-step explanation:

First number = x -2

Second number = x

and 2x = 3(x-2) - 5

2x = 3x - 6 - 5

x = 11

first number = 11-2 = 9

8 0

2 years ago

Eugene wants to make 21 fluid ounce is 40% sugar solution to get an 80% sugar solution in a 10% sugar solution how much solution

Serjik [45]

Answer:

Step-by-step explanation:

6 0

3 years ago