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Nat2105 [25]
3 years ago
15

It is known that x+y=10 and that x=z show that z+y=10

Mathematics
1 answer:
morpeh [17]3 years ago
4 0
Known that,

x = z

Also known that,

x + y = 10

Substituting value of x,

z + y = 10

Hence, proved.
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Make n the subject of m= n² + 3
Andrej [43]

The n subject of m = n² + 3  is  n=\sqrt{m-3}

How is n made the subject of m = n² + 3 ?

m = n² + 3

n² = m- 3

n=\sqrt{m-3}

What does making n the subject mean?

  • To make n the subject of the formula or equation, we must rearrange the variables in the formula or equation to  have a single variable n that is equivalent to the other variables in the formula.
  • The equation is then rearranged such that each term containing n is placed on the same side of the equation.
  • If n appears in several words, factorization might be necessary.
  • Just one n needs to be displayed at the conclusion to make it the subject.
  • The result of square rooting a number or variable as an inverse operation may be positive or negative.

To learn more about making n the subject , refer:

brainly.com/question/625155

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7 0
1 year ago
On Monday, Sam's Pizza sold 40 large
Tanzania [10]

Answer:

$1,365

Step-by-step explanation:

Large Pizza: 40*12= $480

Medium Pizza: 57*10= $570

Small Pizza: 35*9= $315

480+570+315= $1,365

4 0
3 years ago
The difference of two numbers is 42. the larger number is three less than six times the smaller number. find the numbers.
IgorLugansk [536]
X and y are the numbers
x>y

diffference is 42
x-y=42

larger is 3 less than 6 times smaller
x=-3+6y

subsitute -3+6y for x

x-y=42
-3+6y-y=42
-3+5y=42
add3 to both sides
5y=45
divide both sides by 5
y=9

sub back

x=-3+6y
x=-3+6(9)
x=-3+54
x=51

the numbers are 51 and 9
5 0
4 years ago
Jasmine claims that the two triangles are congruent since the Side-Angle-Side (SAS) triangle congruence criterion ensures that a
Paul [167]
4. The claim is incorrect since the triangles do not meet the SAS triangle congruence criterion
4 0
3 years ago
XZ=n, WZ=2x-5, and the perimeter of ΔXWZ is 20. What is the value of n?
Sergio039 [100]

Answer:

d.

Step-by-step explanation:

Since it's an isosceles triangle, WX=WZ= 2n-5

Perimeter = n + (2n-5) + (2n-5)

= 5n - 10

The Perimeter is given to be 20

5n - 10 = 20

5n = 30

n = 6

3 0
3 years ago
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