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bagirrra123 [75]
3 years ago
9

Using substitution, which value of x makes this equation true? 3+x = 10

Mathematics
2 answers:
shusha [124]3 years ago
4 0

Answer:

<em>x=7</em>

Step-by-step explanation:

3+x=10

<em>x=10-3</em>

<em>x=7</em>

Firdavs [7]3 years ago
3 0

Answer:

7

Step-by-step explanation:

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Need help with this math​
IgorLugansk [536]
<h2>Answer: 6 gallons </h2>

First we are told that we initially had 1/3 of the tank and when 10 gallons were added we had 3/4 of the tank:

\frac{1}{3}+10gallons=\frac{3}{4}    (1)

10gallons=\frac{3}{4}-\frac{1}{3}   (2)

1gallon=\frac{1}{24}    (3)

This means 1 gallon is equivalent to 1/24 tank.

On the other hand if we have 3/4 of a tank and need to reach 1 tank we have to add another fraction of the tank:

\frac{3}{4}+X=1   (4)

X=\frac{1}{4}   (5)>>>>This is the fraction needed to complete 1 tank

Now we need to know <u>how much that 1/4 tank is equivalent in gallons</u>.

From (3) we know 1gallon=\frac{1}{24} . So, we can write the following relation to transform from fractions of a tank to gallons:

\frac{1}{4}.\frac{1gallon}{\frac{1}{24}}=(\frac{1gallon}{4})(\frac{24}{1})

\frac{24}{4}gallons=6gallons

Therefore:

<h2>6 more gallons are needed to fill the tank</h2>
8 0
4 years ago
Which postulate or theorem proves that these two triangles are congruent?
denis-greek [22]
AAS they have a congruent side marked, the vertical angle and the marked congruent angle
3 0
4 years ago
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Help with this work pls​
Travka [436]

Answer:

  (6, 2), (0, -2), (-3, -4)

Step-by-step explanation:

The intercepts are clearly (0, -2) and (3, 0). This eliminates the bottom two choices.

Both of these are listed in the upper left choice, but the third point there, (-6, -5), is not on the graph. This leaves only the upper right choice. Checking the remaining two points in that choice, (6, 2) and (-3, -4), confirms they are both on the graph.

8 0
3 years ago
FLIP THE PIC<br><br>PLEASE HELP MEEEEEEEEEEEEEEEEEEEE​
Liula [17]

Answer:

18.21 cm^2.

Step-by-step explanation:

Area of the unshaded part

= area of the square - area of the quadrant

= 7^2 - 1/4 pi *7^2

= 49 - 30.788

= 18.21 cm^2.

3 0
3 years ago
Rotational symmetry is the quality a design has if it maintains all characteristics when it is rotated about an axis lying in it
mrs_skeptik [129]
Answer – TrueA design is said to have Rotational symmetry if all its characteristics remain the same after it has been rotated about an axis lying in its plane. In other words, rotational symmetry is the quality possessed by a shape has when it looks the same after it has undergone some rotation by a partial turn about an axis lying in its plane. Rotational symmetry is also referred to as radial symmetry.

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3 years ago
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