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Triss [41]
3 years ago
15

Please help its super easy!!!

Mathematics
2 answers:
tester [92]3 years ago
8 0

Answer:

1/7th of the cupcakes is 3. so 2/7ths makes 6. and 21 minus 6 is 15. So, your answer is 15.

Hope this helps


andrey2020 [161]3 years ago
4 0

well, 1/7th of the cupcakes is 3. so 2/7ths makes 6. and 21 minus 6 is 15. So, your answer is 15.


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Write the expanded expression in expanded form using the definition of an exponent.<br> 2wz^2?
hram777 [196]

The expanded form of the given expression is 2 × w × z × z

<h3>Writing an expression </h3>

From the question, we are to determine the expanded form of the given expression

The given expression is

2wz²

To write an expression in an expanded form, we will write the expression as a repeated multiplication in the <u>simplest</u> way possible.

To do this, we will first expand the index in the given expression.

The index in the given expression is z²

Thus, we get

z² = z × z

Now, we will include the remaining individual terms in the expression and write them as product.

That is,

2wz² = 2 × w × z × z

Hence, the expanded form of the given expression is 2 × w × z × z

Learn more on Writing an expression here: brainly.com/question/17985350

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7 0
2 years ago
3x - 2y = 13 x + 4y = 14​
AleksandrR [38]

Answer:

10x +6y - 14

Step-by-step explanation:

3x - 2y = 13x + 4y = 14

3x = 13x + 6y = 14

-10x = 6y = 14

10x + 6y - 14

6 0
3 years ago
What is the standard form of the equation of a circle that has its center at (-2, -3) and passes through the point (-2, 0)?
Vlada [557]

Answer:

A.  (x+2)^2 + (y+3)^2 = 9

Step-by-step explanation:

Equation of a circle is

(x-x_1)^2+(y-y_1)^2=r^2    ------------- (1)

Here

(x_1, y_1) = (-2, -3)

Radius is distance from center to circumference

r=\sqrt{(-2+2)^2+(-3-0)^2}

r=3

Substituting values in equation (1)

(x+2)^2 + (y+3)^2 = 9

7 0
3 years ago
What is the length of AC?<br><br> • 10<br> • 12<br> • 15<br> • 20
Gre4nikov [31]
The answer is 12. sorry if i’m wrong
3 0
3 years ago
Cal is measuring temperature changes in four substances over different time periods as part of a school project. Which data show
djyliett [7]

Answer:

C) The third table. K= 5

C)\frac{10}{2}=\frac{15}{3}=\frac{25}{5}=\frac{40}{8}=k= 5

Step-by-step explanation:

1) Below there are the missing data:

A proportional relationship through a constant k. It is obtained when we divide:

k=\frac{y}{x}

2)In this case, when we divide the temperature (T) by the time (h).

k=\frac{T}{h}

3)So, examining the table below we are searching for a ratio k common to all measures (temperatures over hour).

A) \frac{12}{3}\neq\frac{25}{5}\neq\frac{36}{6}\neq\frac{81}{9}\\B) \frac{22.5}{3}\neq\frac{30}{4}\neq\frac{52.5}{7}\neq\frac{67.5}{8}\\C)\frac{10}{2}=\frac{15}{3}=\frac{25}{5}=\frac{40}{8}=k= 5\\D)\frac{8.5}{2}\neq\frac{22.5}{5}\neq\frac{28.5}{7}\neq\frac{36}{8}

3 0
3 years ago
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