A man's monthly salary was decreased in the ratio of 7:2, he was paid N625. How much was his original salary.

Answer:

Elimination

x = 2

y = -2

Step-by-step explanation:

Elimination

2x + 4y = -4

2x - y = 6

Subtract the second equation from the first

5y = -10

Divide both sides by 5

y = -2

---------------------

Substitute for y = -2 in the second equation

2x - -2 = 6

2x + 2 = 6

subtract 2 from both sides

2x = 4

Divide both sides by 2

x = 2

Answer:

14

Step-by-step explanation:

Answer:

14 Ounces

Step-by-step explanation:

16 x 2 = 32 Ounces of corn

32 - 18 = 14 Ounces

Answer:

B - -1

Step-by-step explanation:

x+y=1

x-y=3

x-y +y = 3 +y

x=3 +y

x+y =1

(3+y) +y=1

3 + 2y= 1

2y= -2

y= -1

Answer:

[tex]x=2[/tex]

Step-by-step explanation:

Since the scale is in equilibrium, both sides must be equal. Therefore, we have the following equation:

[tex][\text{Left Side} ]3x+3=[\text{Right Side}]9[/tex]

Solving for [tex]x[/tex]:

[tex]3x+3=9,\\3x=6,\\x=\boxed{2}[/tex]

Answer:x=2

Step-by-step explanation: try to first set up an equation. First we can see the scale is balanced so we know each side is equal to each other. You have 3 x boxes and 3 circles so our first side will be 3x+3. Now let’s move onto the second side. It has 9 circles so 3x+3=9. Now let’s solve!

Subtract 3

3x=6

Now divide by 3

X=2

Hope this helps

Answer:

135

Step-by-step explanation:

First, divide.

18 ÷ 4 = 4.5

Then, multiply.

4.5 × 30 = 135

Have a great day!

9514 1404 393

Answer:

  249°

Step-by-step explanation:

Arc ABC = Arc AB + Arc BC

  = 180° +69°

Arc ABC = 249°

Answer:

A=6a²

Step-by-step explanation:

Lowercase a is the length of one side.

Answer:

678.24 cubic centimeters

Step-by-step explanation:

Answer:

[tex]\frac{6.3cm}{18cm}=0.35[/tex]

or 35%

cos(70°)=0.34

The difference in the result is because of the precision of the measurements.

Step-by-step explanation:

First, we can start by drawing a horizontal line in our sheet of paper and pick one point on the line. (Picture 1)

Next we take our protractor and measure 70°. (Picture 2)

Then we draw a line that measures 18cm with our ruler from the point we selected on the horizontal line to the point we measured with the protractor. (Picture 3)

Next we take our square and measure a 90° angle from the end of the line we drew on the previous step to the horizontal line and connect the horizontal line to the ending point of the hypotenuse. (Picture 4)

And that will be our triangle. Next we can measure the adjascent side to the 70° angle (Picture 6) which turned out to be 6.3cm which can now be used to calculate the ratio as a percentage. (Picture 5)

[tex]ratio=\frac{adjascent}{hypotenuse}=\frac{6.3cm}{18cm}=0.35[/tex]

which is the same as a 35%.

If we calculated the cos(70°) with our calculator we would get:

cos(70°)=0.34

As you may see our measurements were pretty precise, the difference in answers will depend on the precision of our measurements.

Answer:

605.85 (ft 2)

Step-by-step explanation:

5 1/4 * 115.4 = 605.85 (ft 2)

Answer:

3 gallons or 3.032

Step-by-step explanation:

find the total surface area (758)

divide by 250 or subtract 250 till it is under that number

Answer:

2. 9x - 4= 12x - 55

9x - 12x = -55+4

-3x = -51

x = 17

3. 7x +29 = 11x - 31

7x - 11x = -31-29

-4x = -60

x =15

Answer:

6.4 cm

Step-by-step explanation:

i think you'd use pythagoras theorem if you don't know any of the angles . a^2 + b^2 = c^2 . so 4^2 + 5^2 = square root 41 ,, = 6.403124237 cm

i apologise if it is incorrect ^^

Answer:

Sq root of 41cm

Step-by-step explanation:

took the test

Answer: 990 ways

Step-by-step explanation:

For the first chicken, there are 11 slots it could be, or 11.  For the next chicken, there are 10 available, or 10.  Same thing for the third chicken, with 9.  Thus, simply do 11*10*9 to get 990.

Step-by-step explanation:

common ratio r = 98/140

first term a = 140

geometric sequence formula is an = ar^(n-1)

an = 98^(n-1)

where n is the number of terms in the sequence

Answer:

16 x 25 x 37 = 14800 m^3

////////////////////////

Answer:

2x= 38.5

Step-by-step explanation:

I'm not sure where u got 12x but 2 x = 38.5:

2x + 5 =82

subtract 5 for 82

2x = 77

77 divided by 2 is 38.5

x = 38.5

hope this helps :)

Answer:

(1/4)×4=1/16

Step-by-step explanation:

Blue is 1 out of the 4 colours, it rolls for 4 times

u = 8

Step-by-step explanation:

log(10) u = log(10) 4^(3/2)

or

u = 4^(3/2)

= [sqrt(4)]^3

= (2)^3

= 8

Answer:

C. [tex]D_\frac{1}{7} (P)=P'(\frac{1}{4},-\frac{5}{14} )[/tex]

Step-by-step explanation:

[tex]\frac{7}{4}*\frac{1}{7}=\frac{7}{28} =\frac{1}{4}[/tex]

[tex]-\frac{5}{2} *\frac{1}{7} =-\frac{5}{14}[/tex]

Step-by-step explanation:

[tex] \to \dfrac{2 - \sqrt{3} }{ \sqrt{6} } [/tex]

[tex] \to \dfrac{2 - \sqrt{3} }{ \sqrt{6} } \times \dfrac{ \sqrt{6} }{ \sqrt{6} } [/tex]

[tex] \to \dfrac{ \sqrt{6}( 2 - \sqrt{3} )}{ {(\sqrt{6})}^{2} } [/tex]

[tex] \to \dfrac{ 2 \sqrt{6} - \sqrt{18} }{ 6 } [/tex]

[tex] \to \dfrac{ 2 \sqrt{6} - 3 \sqrt{2} }{ 6 } [/tex]

[tex] \to \dfrac{ \sqrt{6}}{3} - \dfrac{ \sqrt{2} }{ 2 } [/tex]

Answer:

m<1+m<4=180° should be the answer not sure if the third ones suppose to be + not = if that's the case then I think that one

p - 4 is the answer. No multiplication or division involved

Answer:

The area of a kite measures the space inside the four sides. The most common way to find the area is by using the formula A = xy/2, where x and y are the lengths of the diagonals.

Step-by-step explanation:

Answer:

Graph B

Step-by-step explanation:

Answer:

B) is correct

Step-by-step explanation:

Answer:

$208

Step-by-step explanation:

First, divide.

80 ÷ 5 = 16

Next, multiply.

16 × 13 = 208

Lastly, have a wonderful day! :)

Answer:

At the same rate, Latoya would make $208 for 13 hours of work.

Step-by-step explanation:

Since Latoya made $80 for 5 hours of work, that means she made a unit rate of $16 per hour. By working at the same rate for 13 hours, she would make a total of [tex]16 * 13 =[/tex] $208.

Answer:

Solution given:

12 Ouches =$7200

per Ouches =$7200/6=$600

So

the required equation for the cost of any weight of gold is:

C.

600W=C is a required equation.

Answer:

The teacher can make 8 different 3 person teams

Step-by-step explanation:

Since there is a total of 24 students and the teacher wants to make as many 3 person groups as he/she can you would just do 24 divided by 3 which would equal 8 different teams of 3 people. So the teacher can make 8 different groups of 3 people

[tex]{\boxed{\mathcal{\red{h\:=\:9.5}}}}[/tex] ✅

[tex]h + \frac{1}{2} = 10 \\ ⇢ h + 0.5 = 10 \\ ⇢ h \: = 10 - 0.5 \\ ⇢ h = 9.5[/tex]

[tex]\circ \: \: { \underline{ \boxed{ \sf{ \color{green}{Happy\:learning.}}}}}∘[/tex]