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miv72 [106K]
2 years ago
6

Select the correct expression.

Mathematics
2 answers:
antoniya [11.8K]2 years ago
5 0

Answer:

D

Step-by-step explanation:

All we need to know is that there are 2 PASTRIES, this makes it to where we can exclude any equation multiplying against two tea cups. Thus making D the only answer correct.

crimeas [40]2 years ago
3 0
D

because she wants to buy 2 pastries and one costs $2.75, so you’ll need to multiply by two. the tea is not needing to be multiplied. this expression is a y = mx + b.
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The class president wants to survey the students at the high school about the selection of food offered by the school cafeteria.
lesantik [10]

Answer:

C . Sample : 6 boy and 7 girls

Step-by-step explanation:

Data :

  Boys = 150

  Girls = 175

So ratio between boys and girls

     175/150  = 1.67

So when boy is 6

   6 ×1.667 = 7

5 0
2 years ago
What are the solutions of the quadratic equation (x + 3)(x +3) = 49? Ax = -2 and x = -16 Bx = 2 and x = -10 Cx = 4 and x = -10 D
Ivahew [28]

Answer:

4 and -10

Step-by-step explanation:

\displaystyle (x + 3)(x +3) = 49 \\ x^2+3x+3x+9=49 \\ x^2 +6x+9=49 \\ x^2 + 6x + 9 - 49 = 0 \\x^2+6x-40=0 \\\\ \Delta=b^2-4ac \\ \Delta=6^2-4 \cdot 1 \cdot (-40) \\ \Delta=36+160 \\ \Delta=196 \\ \\ X_{1,2}=\frac{-b \pm \sqrt{\Delta} }{2a}  \\ \\ X_1=\frac{-b+\sqrt{\Delta} }{2a} = \frac{-6+14}{2} = \frac{8}{2}=4 \\ \\ X_2=\frac{-b-\sqrt{\Delta} }{2a}  = \frac{-6-14}{2}=\frac{-20}{2} = -10

4 0
3 years ago
Scott signed a two-year lease for a monthly rent of $505. How much will
netineya [11]
There are 12 months in a year. The rental term is for 2 years, that's a total of 24 months.

They pay $505 every month

24 months × $505 = $12,120 paid over the lease term.
answer is D.
4 0
3 years ago
Read 2 more answers
Can any one help me with this problem
Feliz [49]

Answer:

im so sorry but i havent learned this yet sorry

Step-by-step explanation:

3 0
3 years ago
Can someone help me with number 2. Please explain your answer.
yKpoI14uk [10]
4x+y = 20
3x+y = 2
4x+y-3x-y = 20-2
x = 18

3x+y = 2
3.18 + y = 2
54 + y = 2
y = -52
6 0
3 years ago
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