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What if you bought 3 pens and 5 pencils for 2.25 You paid 2.95 for 5 pens and 3 pencils How much is 1 pencil and how much is 1 pen?
where x is the cost of one pen, y is the cost of one pencil: 3x + 5y = 2.25 5x + 3y = 2.95 Just need to isolate x in the first equation: x = 2.25/3 -5y/3, or 0.75 -5y/3 then, substitute .75 -5y/3 for x in the SECOND eq. : 5(.75 - 5y/3) +3y = 2.95 Next, solve for y. then use that value to solve for x. too tired to finish...
How many stamps for an 8.5x11 envelope?
If it weighs up to one ounce and is rigid and not extra thick you can mail it for 88 cents ( two first-class stamps). If it weighs 2 ounces the cost is $1.08. If it heavier or thicker, it will cost more.
What is one and three fourths plus one and three fourths?
1.75 + 1.75 = 3.5 One and three fourths plus one and three fourths is three and a half.
Bettina spent 75 on 5 shirts that each cost the same price . Three of the shirts are red . Which expression can represent the total cost of the red shirts?
To find the total cost of the red shirts, first determine the cost of one shirt by dividing the total amount spent by the number of shirts: ( \frac{75}{5} = 15 ). Since three of the shirts are red, the expression to represent the total cost of the red shirts is ( 3 \times 15 ) or simply ( 3 \cdot \left(\frac{75}{5}\right) ).
How is 1.3 written in word form?
1.3 = one and three tenths.
If 5 pens cost Rs. 20.25 how much do 2 pens cost?
One pen cost 4.05 and so two pens cost 2*4.05 = 8.1 Rs
What is the cost of five pens at 30 pensce each?
The cost of one pen is 30 pence, so the cost of five pens would be 5 multiplied by 30 pence. This equals 150 pence. Therefore, five pens would cost £1.50.
What is the probability of getting a black pen if you have 4 black pens 6 blue pens and 2 red pens?
one out of three
How can the farmer get 9 cows into 8 pens?
In one of the pens, put two cows.
How many millimetres are there in 567 centimeters?
There are 10 millimetres in one centimetre. Therefore, 567 millimetres is equal to 567/10 = 56.7 centimetres.
What do printed pens normally cost?
Printed pens can be purchased for amounts from less than one dollar to in excess of ten dollars each, depending on the quality of the pen and the printing desired.
How many decimetres are there in 567 centimeters?
There are 10 centimetres in one decimetre. Therefore, 567 centimetres is equal to 567/10 = 56.7 decimetres.
What is the GCF of 245 and 567?
one
How much do the Presidential Ceremonial Pens Cost?
About $140 each. The president uses one pen for each letter of his name.
What does three times the cost for one hat mean in algebraic expression?
In algebraic terms, if the cost of one hat is represented by the variable ( x ), then "three times the cost for one hat" can be expressed as ( 3x ). This indicates that the total cost for three hats is three times the individual cost of one hat.
How many inches are there in 567 centimeters?
There are 2.54 centimetres in one inch. Therefore, rounded to two decimal places, 567 centimetres is equal to 567 / 2.54 = 223.23 inches.
What is the exact number between 3 X 567?
3 x 567 is one number. You cannot have a number between only one number.
