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Oliga [24]
3 years ago
11

Ingredients for 7 cakes

Mathematics
2 answers:
Mamont248 [21]3 years ago
8 0
He made 5 cakes I think
lisabon 2012 [21]3 years ago
3 0

Answer:

He made 5 cakes

Step-by-step explanation:

49 divided by 7 = 7

56 divided by 7 = 8

70 divided by 7 = 10

63 divided by 7 = 9

So for one cake you would need 7 g sugar, 8 g butter, 10 g flour, and 9 ml milk. So, 50 divided by 10 = 5 cakes

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A system of equations is shown below. y = –x – 3 5x + 2y = 9 What is the solution to this system?
erastovalidia [21]

Answer:

x=5\ and\ y=-8

The solution of the system can be given as (5,-8).

Step-by-step explanation:

Given system of equations:

y=-x-3

5x+2y=9

To solve the given system of equations:

Solution:

We will use substitution to solve the given system.

We will substitute the y values in terms of x from the equation y=-x-3 into the other equation to solve for x

Substituting y=-x-3 into 5x+2y=9.

We have:

5x+2(-x-3)=9

<em>Using distribution.</em>

5x-2x-6=9

<em>Combining like terms.</em>

3x-6=9

Adding 6 both sides.

3x-6+6=9+6

3x=15

Dividing both sides by 3.

\frac{3x}{3}=\frac{15}{3}

∴ x=5

<em>Plugging in x=5 into y=-x-3.</em>

We have,

y=-5-3

∴ y=-8

The solution of the system can be given as (5,-8).

4 0
3 years ago
The current in a simple electrical circuit is inversely proportional to the resistance. The current is 80 amps when the resistan
Oksana_A [137]
I =  / r            where I = current and r = resistance

80 = k / 50 so
k = 400

so we have I = 400/r

when r = 40  
I = 400/40 = 10 amps
6 0
3 years ago
1. A cylindrical jar has a radius of 5 inches and a height of 9 inches. The jar is filled with marbles that have a volume of 20
egoroff_w [7]

Answer:

a. Volume = π15.02 9.0=6361.73

b. I am very sorry, I don't know

Step-by-step explanation:

8 0
2 years ago
The perimeter of a triangle is 110 inches. The ratio of the side measures are 6:7:9. Find the measure of each side.
erastova [34]

The ratio of the side measures are 6:7:9.

Let's assume length of three sides of the triangle is 6x, 7x and 9x.

Given,perimeter of a triangle is 110 inches.. Perimeter is the sum of all three sides of the triangle. So, we can set up an equation as follows:

6x+7x+9x= 110

22x =110

\frac{22x}{22} =\frac{110}{22} Dividing each sides by 22.

x=5.

Now we can plug in x=5 in all the expressions of sides.

So, 6x=6(5)=30,

7x=7(5)=35

9x=9(5)=45.

So, the sides of the triangle are 30 inches, 35 inches and 45 inches.

4 0
4 years ago
Two more than4 times a number is -18
jonny [76]
-5, work backwards. you know 2 + 4 * ? = -18.
start by subtracting 2 from both sides giving you 4 * ? = -20.
now you divide 4 from both sides giving you ? = -5

i used ? to represent the missing number btw!!
6 0
4 years ago
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