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slamgirl [31]
3 years ago
6

Solve the system of equations using the linear combination method. 7x+2y=29 3x−5y=30

Mathematics
1 answer:
Nitella [24]3 years ago
3 0

Answer:

X=5 , Y=-3

Step-by-step explanation:

In the picture I hope that it's a clear.

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Tables do not include numerical data. True or false?
stepan [7]
True all table does not need to include numerical data 
5 0
3 years ago
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Martina filled a 100mL container Simone filled a 1.2 liter container how much more water does Simone have than Martina
fomenos

Answer:

divide 100 ml and 1.2 liter

Step-by-step explanation:


You will get the answer in percent


3 0
3 years ago
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The cost for an order of 100 kilograms of steel bars is $230. The cost for an order of 150 kilograms of steel bars is $320. Writ
luda_lava [24]

Answer:

y = 9x/5 + 50

Step-by-step explanation:

We are represent the information as coordinate (x,y)

If the cost for an order of 100 kilograms of steel bars is $230, this is expressed as (100, 230)

Also if the cost for an order of 150 kilograms of steel bars is $320, this is expressed as;

(150, 320)

Find the equation of a line passing through the points. The standard form of the equation is expressed as y = mx+c

m is the slope

c is the intercept

Get the slope;

m = y2-y1/x2-x1

m = 320-230/150-100

m = 90/50

m = 9/5

Get the y-intercept by substituting m = 9/5 and any point say (100, 230) into the expression y = mx+c

230 = 9/5(100)+c

230 = 9(20)+c

230 = 180 + c

c = 230-180

c = 50

Get the required equation

y = mx+c

y = 9/5 x + 50

Hence an equation for the cost of an order of steel bars (y) in terms of the weight of steel bars ordered (x) is y = 9x/5 + 50

4 0
3 years ago
A number is such that it is as much greater than 112 as it is less than it . find the number​
lesya [120]
Answer. it is -111 because it is greater than 112 and in positive form it is smaller and in negative it is bigger .
6 0
3 years ago
Help me plz!<3 asap​
nexus9112 [7]

Answer:

73,58,107,49,131

Step-by-step explanation:

m∠1=73°because alternate interior angles

m∠2= 180-49-73=58° because straight lines make 180° angles

m∠3=58+49=107° because alternate interior angles

m∠4 =49° because alternate interior angles

m∠5=180-49=131° because straight lines make 180° angles

7 0
3 years ago
Read 2 more answers
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