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Over [174]
3 years ago
5

Simplify (30x - 12y) + (41x + 62y)

Mathematics
1 answer:
BabaBlast [244]3 years ago
7 0
That would be 71x + 50y
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There are 48 calories of energy in 40g of rice. How many calories are in 160 g of rice?
Rashid [163]
160 grams of rice is four times larger than the given 40 g. 
<span>So the number of Calories must be 4 times larger too. </span>

<span>48 x 4 = 192 Calories in 160 g of rice</span>
5 0
3 years ago
Read 2 more answers
A line contains the points (-1, 6), (6, k) and (20, 3). What is the value of k?
AURORKA [14]
Consider, pls, this option:
1. if a required line has a form y=ax+b, then points A(-1;6); B(6;k) and C(20;3) belong to it.
2. According to the item 1 it is possible to make up the system of equations for A and C:
\left \{ {{-a+b=6} \atop {20a+b=3}} \right \  \left \{ {{a=- \frac{1}{7} } \atop {b= \frac{41}{7} }} \right.
Knowing, that a=-1/7 and b=41/7, it is possible to write the equation of required line:
y=- \frac{1}{7}x+ \frac{41}{7}
3. Using coordinates of point B:
k=- \frac{6}{7}+ \frac{41}{7} =5 \ where \ k=y

Answer: 5.
7 0
4 years ago
NEED HELP!!!! <br><br> 1/4x^2=27/4
lara [203]
Multiple both sides by 4 and it will cancel out the 4 on the 27/4 and the 4 in the 1/4 leaving 1x^2=27 then you square root both sides and your final answer will be x=-3 square root 3 AND x=3 square root 3
6 0
4 years ago
Are the triangles congruent? and why?
Natali [406]

Answer:

Yes the triangles are congruent

Step-by-step explanation:

since

AB=CD

AD=CB

and BD= BD (common sides)

Therefore

the two triangles are congruent

7 0
3 years ago
A(-3, -2) and B(6, 1), determine the coordinates of point P on directed line segment stack A B with bar on top that partitions s
Bad White [126]

Answer:

P(3,0)

Step-by-step explanation:

We want to find the coordinates of P(x,y), that partitions \overline{AB} in the ration m:n=2:1.

where (x_1,y_1)=A(-3,-2) and (x_2,y_2)=B(6,1).

This is given by:

x=\frac{mx_2+nx_1}{m+n}

y=\frac{my_2+ny_1}{m+n}

We substitute the values to get:

x=\frac{2*6+1*-3}{2+1}

x=\frac{9}{3}=3

y=\frac{2*1+1*-2}{2+1}

y=\frac{2-2}{2+1}

y=\frac{0}{3}=0

The coordinates are (3,0)

3 0
3 years ago
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