Ravi can type 6 words in 4 seconds. how many words can she type in 10 seconds.
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Answer 1
Answer:
If in four seconds, she can type six words, then we can guess that in eight seconds (4x2) she can type twelve words (6x2). Now, thats only for eight seconds, and we need two more to make ten. In four seconds, she types six words, so we need only two seconds, which would be half of six (3). And the 12+3 gives us 15 words in ten seconds. Sorry if its wrong, but hope i helped somehow :)
Selma has 77 strawberries. Divide them into two groups so that for every 4 strawberries in group 1 there are 7 strawberries in group 2 how did you break it down
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4x+7x=77 11x=77 77/11 x=7
22 tables in the cafeteria. Each table can seat 8 students. Thereb are 4lunch periods each day. How many students can the cafeteria seat each day?
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22 x 8 will get you how many people can sit for one period. Multiply the product of 22 and 8 by 4 to get the total number of students per day. 704!
HELPME PLEASE I BEG IU REALLLY NEED YOUR HELP I BEG I RELALY NEED HELP :( A LOT OF POINTS!
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Question 75: Simplify -4x(3x^2-2x+1)
Answer: -12x^3+8x^2-4x
Question 76: (2x-6)(x+1)
Answer: 2x^2-6x+2x-6=2x^2-4x-6
Question 77: 8x^4+2x^3-4x^2
Answer: GCF (Greatest Common Factor) 2x^2(4x^2+x-2) GCF=2x^2
Question 78: 25x^8+15x^5
Answer: 5x^5(5x^3+3)
Question 79: (x-4)(x+2)
Answer: x^2-2x-8
Question 80: 2x^2+7x+6 Factors: (2x+3)
Answer: (2x+3)(x+2) Other Factor: (x+2)
Question 81: (2x-1)^2
Answer: 4x^2-4x+1
Question 82: 4x^2-25
Answer: (2x-5)(2x+5)
Question 83: x^3+27
Answer: (x+3)(x^2-3x+9)
Question 84: x^3-125
Answer: (x-5)(x^2+5x+25)
Question 85: x^2=121 x=square root of 121
Answer: x=11, -11
Question 86: (x+3)(x+7)=0
Answer: x=-3,-7
Question 87: x^2-16=0 (x-4)(x+4)=0
Answer: x=-4,4
Question 88: x^2-3x-40=0 (x-8)(x+5)=0
Answer: x=8,-5
Question 89: x^2+3x+?
Answer: x^2+3x+9/4 (x+3/2)(x+3/2) 9/4
Question 90: x^2+5x=-1 x^2+5x+25/4=-1-25/4 (x+5/2)^2=the square root of -29/4 x+5/2=(square root of -29)/2
Answer: x=(-5+ or - the square root of -29)/2
Question 91: x^2+2x+c=0 1 real solution
Answer: c=1
Question 92: Use quadratic formula. 2x^2-4x+1=0 x=-b+ or - (the square root of b^2-4ac)/2a x=4+ or - (the square root of 16-8)/4 x=4+ or - (the square root of 8)/4 x=+ or - 2 rad 2
Question 93: y=2x^2
Answer: y=1/2x^2
When the factor of x decreases, the graph widens.
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Answer:
Step-by-step explanation:
The expression 12a+7s is the cost, in dollars, for a adults s students to enter the local marching band competition. Find the total cost for 4 adults and 30 students.Before you delete this I did try on my own and this has been confusing me
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If 12A is equal to one adult, then this means that one adult will cost $12 to enter. The same applies for the students, if 7s is equal to one student, then the cost of one student is $7. As you've got four adults, then you need to find the cost of 4, and you do this by multiply 4 by 12. 4x12=$48 As you've got 30 students, you then need to multiply 30 by 7. 30x7=$210. To find the total cost, you've then got to add $48 and $210 together. $48+$210= $258.
Therefore, the total cost for 4 adults and 30 students is $258 Hope this helps :)
a=$4, s=$30
=12($4)+7($30) =$48+$210 =$258
Diego has 4 times as many autographed baseballs as Melnie has.Diego has 24 autographed baseballs. How many autographed balls does Melanie have
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Melanie has 6 because 24รท4=6
Melanie has six autographed Balls. 24/4=6
angle y and angle x form vertical angles. Angle y forms a straight line with the 80 degree angle and the 60 degree angle. Write and solve an equation to determine the measure of angle x
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If angle y and angle x form vertical angles, then they ARE vertical angles. Vertical angles have the SAME degree measure. If angle y forms a straight line with the 80 degree angle and the 60 degree angle, this means that adding angle y, the 80 degree angle, and the 60 degree angle gives you a straight line. A line is 180 degrees. So, angle y's measure=180-(80+60). Since measure of angle x equals measure of angle y, the equation is m<x=180-(80+60).