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earnstyle [38]
3 years ago
5

Solve the simultaneous equation 3x-2y=7 7x+2y=13

Mathematics
1 answer:
Lerok [7]3 years ago
5 0

Answer: x= 2, y= -1/2

Step-by-step explanation:

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If the shape of an object changes the perimeter will always change true or false
Ugo [173]

The answer is false due to the object is changes shape not size

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3 years ago
Jane is cooking in her recipe indicates that she should add several spices she needs to add 1/2 of a teaspoon of salt, 1 1/4 tea
polet [3.4K]

Answer: total number of teaspoons of spices in the dish =3.25 teaspoons

Step-by-step explanation:

Step 1

Listing the spices and their quantities , we have

Salt = 1/2 teaspoon

Orégano =1 1/4 teaspoon =5/4 teaspoons

Basil = 3/4 teaspoon

Pepper= in half as much pepper as salt -- This means that the quantity of pepper should be  50% more in quantity  than salt

Therefore quantity of pepper = 50% x 1/2 = 0.5 x 0.5= 0.25

0.25 +  1/2 = 0.25 + 0.5 = 0.75 = 3/4 teaspoon of pepper.

Step 2

Adding the amount of spices we have

1/2 + 5/4+ 3/4+ 3/4 = 2+ 5+3+ 3/4 = 13/4 = 3 1/4 teaspoons of spices  = 3.25 teaspoons of spices .

3 0
2 years ago
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KiRa [710]
Wanda's graph is incorrect because Claudia needs to earn $80 or more and Wanda's graph shows $80 or less.
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Find the highest common factor using prime factorization for 27y and 54y³<br>​
amid [387]

Given:

27y and 54y³

​To find:

The highest common factor (HCF) using prime factorization.

Solution:

We have,

27y and 54y³

Using the prime factorization, we get

27y=3\cdot 3\cdot 3\cdot y

54y^3=2\cdot 3\cdot 3\cdot 3\cdot y\cdot y\cdot y

Now, the common prime factors are 3, 3, 3 and y. So,

HCF=3\cdot 3\cdot 3\cdot y

HCF=27y

Therefore, the highest common factor of the given terms is 27y.

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3 years ago
When r=4, what is the value of (9-r)2
fenix001 [56]
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3 years ago
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