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scoundrel [369]
3 years ago
8

Given these equations x+y=9.0 0.50x+0.20y=4.05

Mathematics
2 answers:
kow [346]3 years ago
5 0
When we solve these equations x= 7.5 and y= 1.5.
tankabanditka [31]3 years ago
4 0

Answer:

Step-by-step explanation:

Given are two simultaneous equation in two variables x and y as

x+y =9\\0.5x+0.2y = 4.05

To solve this let us multiply second equation by 5

x+y =9\\2.5x+y = 20.25\\----------------------\\-1.5x  =-11.25\\x = 7.5

Substitute x value in I equation to get

7.5+y =9\\y =1.5

So solution set is

x=7.5\\y=1.5

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julia-pushkina [17]

Answer:

Fatima should shade 3 groups of 8 small squares or 24  small squares.

Step-by-step explanation:

Consider the provided information.

Fatima is shading this model to show 0.08 × 3. Shade the correct  amount of boxes that will show the product.

Here 3 represents the number of groups and 8 represents the small square.

Multiplication is repeated addition.

We can rewrite the above multiplication as: 0.08 + 0.08 + 0.08

Therefore 0.08 × 3 = 0.24

Here 0.24 represents 24 small squares.

The required model is shown below:

Hence, Fatima should shade 3 groups of 8 small squares or 24  small squares.

8 0
3 years ago
A farmer has 20 boxes of eggs
aliina [53]
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5 0
3 years ago
I BET YOU CANT SOLVE THIS...
e-lub [12.9K]
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3 years ago
The function y=−0.25x+0.55 represents the percent y (in decimal form) of battery power remaining x hours after you turn on a lap
AURORKA [14]
Answer: a is 2.2, b is 0.55
Explanation:
To find the x intercept, put 0 instead of y,
hence,
0=-0.25x+0.55
-0.25x=-0.55
x=2.2
To find y intercept put 0 instead of x,
so,
y=-0.25*0+0.55
y=0+0.55
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3 0
3 years ago
an airplane flies 105 miles and 1/2 hour how far can you fly on a 1/4 hours at the same rate of speed
nexus9112 [7]
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3 years ago
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