All categories

3 years ago

ՎԼ ԱԾաղba Su 42x-1=64 Solve for x

Mathematics

1 answer:

denpristay [2]3 years ago

5 0

Answer:

x=1.55

Step-by-step explanation:

42x-1=64

+1 +1

42x= 65

/42 /42

x= 1.55 (rounded)

You might be interested in

HELP ME PLZ I NEED IT

Alchen [17]

Answer:

= 12 cm^3

Step-by-step explanation:

V = Bh where B is the area of the base and h is the height

For a triangular prism, the base is the triangle

A = 1/2 bh for the triangle

= 1/2 (6*2)

= 6 cm^2

To find the volume for the triangular prism

V = Bh

= 6 * 2

= 12 cm^3

4 0

3 years ago

Read 2 more answers

Help plsssssssssssssssssssssssssssssssss again 3

gtnhenbr [62]

Answer:

200 minutes

Step-by-step explanation:

In order to find the range, you have to subtract the greatest number to the lowest number. In this case, 400 is the smallest number, and 600 is the greatest number. 600-400 is 200 minutes.

8 0

3 years ago

In the diagram above, angle 1 = 2x+20 and<br>angle 2 = 3x+10. Find the measure of angle 1.

anzhelika [568]

Answer:

angle 1 is equal to 40°

Step-by-step explanation:

angles 1 and 2 are congruent due to alternate interior angles of parallel lines. This means that 2x+20=3x+10, solving this leaves us with x=10. Since angle 1 = 2x +20 and x=10, solve to get 2(10)+20 =20+20 = 40

7 0

3 years ago

In ABC, BC=4 cm, angle b=angle c, and angle a=20 degrees, what is ac to two decimal places

zubka84 [21]

Answer:

Therefore,

$AC=11.52\ cm$

Step-by-step explanation:

Given:

In ΔABC, BC=4 cm,

angle b=angle c, and

angle a=20°

To Find:;

AC = ?

Solution:

Triangle sum property:

In a Triangle sum of the measures of all the angles of a triangle is 180°.

$\angle a+\angle b+\angle c=180\\\therefore 2m\angle b =180-20=160\\m\angle b=\dfrac{160}{2}=80\°$

We know in a Triangle Sine Rule Says that,

In Δ ABC,

$\dfrac{a}{\sin A}= \dfrac{b}{\sin b}= \dfrac{c}{\sin C}$

substituting the given values we get

$\dfrac{BC}{\sin a}= \dfrac{AC}{\sin b}$

$\dfrac{4}{\sin 20}= \dfrac{AC}{\sin 80}\\\\AC=11.517=11.52\ cm$

Therefore,

$AC=11.52\ cm$

8 0

4 years ago

Read 2 more answers

Kevin and Randy Muiso have a jar containing 61 coins, all of which are either quarters or nickels. The total value of the coins

RUDIKE [14]

Answer:

They have 45 quarters and 16 nickels.

Step-by-step explanation:

Let x be the number of quarters and y be the number of nickels in the jar,

Since, the jar contains 61 coins,

⇒ x + y = 61 ------(1)

Also, 1 quart = $ 0.25 and 1 nickel = $ 0.05,

So, the total cost = ( 0.25x + 0.05y ) dollars,

According to the question,

0.25x + 0.05y = 12.05,

⇒ 25x + 5y = 1205 -----(2),

Equation (2) - 5 × Equation (1),

20x = 1205 - 305

20x = 900

⇒ x = 45,

From equation (1)m,

y = 61 - 45 = 16,

Hence, they have 45 quarters and 16 nickels.

5 0

4 years ago